{"title":"Performance Services","description":"","products":[{"product_id":"5150-autosport-engine-block-sleeving-service-bmw-s58","title":"5150 AutoSport Block Sleeving Service, BMW S58","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW S58 Engine Block Sleeving Service: Power and Reliability TOGETHER!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBMW G80\/G81\/G82\/G83\/G87 S58 engine; With our professional Engine Block Sleeving Service. When it comes to maximizing performance and durability, the factory OEM block's spray-on iron layer falls short. Elevate your engine's capabilities with our meticulous sleeving process, transforming your block into a powerhouse of strength and precision.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Choose Engine Block Sleeving:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe truth is, the factory spray-on iron layer does not stand up to the demands of high-performance applications. If you're looking to push your BMW's performance limits, you need a solution that provides not only increased strength but also the versatility to bore and hone the block to your desired specifications. Our heavy-duty iron sleeves offer the reliability you need to maximize your engine's potential.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhen Sleeving is the Only Option:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThoroughgoing Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW S58 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include a set of HD Sleeves. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today at \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46322414780723,"sku":"5150-11-SB-S58","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylidner-Sleeving-Service.webp?v=1746212612"},{"product_id":"5150-autosport-engine-block-sleeving-service-bmw-toyota-b58","title":"5150 AutoSport Block Sleeving Service, BMW \/ Toyota B58","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eB58 Engine Block Sleeving Service: \u003c\/strong\u003eWhen it comes to maximizing performance and durability, the factory OEM block's spray-on iron layer falls short. Elevate your engine's capabilities with our meticulous sleeving process, transforming your block into a powerhouse of strength and precision.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Choose Engine Block Sleeving:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe truth is, the factory spray-on iron layer does not stand up to the demands of high-performance applications. If you're looking to push your BMW's performance limits, you need a solution that provides not only increased strength but also the versatility to bore and hone the block to your desired specifications. Our heavy-duty iron sleeves offer the reliability you need to fully maximize your engine's potential.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhen Sleeving is the Only Option:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThorough Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your\u003c\/span\u003e BMW \/ Toyota B58 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include HD Sleeve Set. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today via \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46625463337267,"sku":"5150-11-SB-B58","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeved_BMW_B58_Engine_Block.jpg?v=1753471486"},{"product_id":"5150-autosport-engine-block-sleeving-service-bmw-s55","title":"5150 AutoSport Block Sleeving Service, BMW S55","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW S55 Engine Block Sleeving Service: \u003c\/strong\u003eWhen it comes to maximizing performance and durability, the factory OEM block's spray-on iron layer falls short. Elevate your engine's capabilities with our meticulous sleeving process, transforming your block into a powerhouse of strength and precision.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Choose Engine Block Sleeving:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe truth is, the factory spray-on iron layer does not stand up to the demands of high-performance applications. If you're looking to push your BMW's performance limits, you need a solution that provides not only increased strength but also the versatility to bore and hone the block to your desired specifications. Our heavy-duty iron sleeves offer the reliability you need to fully unleash your engine's potential.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhen Sleeving is the Only Option:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThorough Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW S55 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include HD Sleeve Set. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today via \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46626064335155,"sku":"5150-11-SB-S55","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S58_c9c4afe3-3638-44b3-94e5-cf973a9a0257.jpg?v=1693249459"},{"product_id":"5150-autosport-crankshaft-balancing-service-bmw-engines","title":"5150 AutoSport Crankshaft Balancing Service, BMW Engines","description":"\u003cp data-mce-fragment=\"1\"\u003eAt 5150 Autosport, we proudly offer precision crankshaft balancing services tailored to all BMW engines, including the M10, M20, S14, M5x, S54, S65, B58, S58, N5X, N6X, and more. Our commitment to minimizing harmonics and optimizing engine performance spans the entire BMW lineup.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBenefits of Our Comprehensive Crankshaft Balancing Service:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eEnhanced Smoothness:\u003c\/strong\u003e Whether you're driving a daily commuter or a high-performance racer, achieving the perfect balance reduces vibrations, leading to a smoother and more comfortable ride.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExtended Engine Life:\u003c\/strong\u003e Our expert balancing service alleviates stress on your engine's main bearings, significantly increasing their lifespan. You can trust in the long-term reliability and durability of your BMW engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eImproved Power Potential:\u003c\/strong\u003e Balancing your BMW's crankshaft eliminates unnecessary forces that can hinder performance, unlocking its full power potential.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eMinimized NVH:\u003c\/strong\u003e Bid farewell to annoying noise, vibration, and harshness (NVH) inside your BMW. Our precision balancing ensures a quieter and more enjoyable driving experience.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePreventive Maintenance:\u003c\/strong\u003e Addressing imbalances in your BMW's engine safeguards against bearing damage, metal fatigue, and costly crankshaft failure in the future.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExpert Technicians:\u003c\/strong\u003e Our seasoned technicians possess the knowledge and expertise to intricately balance crankshafts. We employ state-of-the-art equipment and techniques to deliver optimal results for your BMW engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHarmonic Dampener Assessment:\u003c\/strong\u003e As part of our service, we assess the condition of your harmonic dampener or balancer. This ensures effective torsional vibration dampening. If adjustments or replacements are required, we provide recommendations to protect your engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWhether you own a BMW with a high-performance racing engine or a stock vehicle, 5150 Autosport is your trusted partner for precision crankshaft balancing. Elevate your BMW's engine performance, longevity, and overall driving experience. Contact us today to schedule an appointment and witness the advantages of a perfectly balanced engine.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"4 Cylinder","offer_id":46665732686131,"sku":"5150-11-BC-I4","price":299.99,"currency_code":"USD","in_stock":true},{"title":"6 Cylinder","offer_id":46665732718899,"sku":"5150-11-BC-I6","price":350.0,"currency_code":"USD","in_stock":true},{"title":"V8 Cylinder","offer_id":46665732751667,"sku":"5150-11-BC-V8","price":499.99,"currency_code":"USD","in_stock":true},{"title":"10 Cylinder","offer_id":46665732784435,"sku":"5150-11-BC-V10","price":699.99,"currency_code":"USD","in_stock":true},{"title":"12 Cylinder","offer_id":46665732817203,"sku":"5150-11-BC-V12","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/5150-CB.jpg?v=1694131503"},{"product_id":"5150-autosport-engine-block-sleeving-service-bmw-s54","title":"5150 AutoSport Block Sleeving Service, BMW S54","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW S54 Engine Block Sleeving Service: \u003c\/strong\u003eAre you aiming to increase your engine's power but concerned about cylinder cracking? Indeed, the S54's cylinder bores may be too thin to withstand substantial boost. However, with our robust iron sleeves, those worries become a thing of the past. You can achieve the power you desire with confidence in your engine's reliability.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Choose Engine Block Sleeving:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eIn reality, the factory cast iron material falls short when it comes to meeting the requirements of high-performance applications. If you're determined to push the boundaries of your BMW's performance, you require a solution that not only delivers greater strength but also the flexibility to customize the block's boring and honing to your precise specifications. Our rugged iron sleeves provide the dependability necessary to handle significant boost and achieve power levels exceeding 1000HP.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhen Sleeving is the Only Option:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThorough Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your BMW S54 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include HD Sleeve Set. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today via \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46795454316851,"sku":"5150-11-SB-S54","price":3200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S58_6f460760-3d37-42a9-b4fc-4cd591c74422.jpg?v=1694923182"},{"product_id":"5150-autosport-block-sleeving-service-bmw-n63-s63","title":"5150 AutoSport Block Sleeving Service, BMW N63 \/ S63","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW N63\/S63 Engine Block Sleeving Service: Power and Reliability TOGETHER!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhy Choose Engine Block Sleeving:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe truth is, Alusil factory does not stand up to the demands of high-performance applications. If you're looking to push your BMW's performance limits, you need a solution that provides not only increased strength but also the versatility to bore and hone the block to your desired specifications. Our heavy-duty iron sleeves offer the reliability you need to maximize your engine's potential.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWhen Sleeving is the Only Option:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThoroughgoing Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW N63\/S63 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include a set of HD Sleeves. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today at \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46795713610035,"sku":"5150-Sleeving-S63","price":4400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S63.jpg?v=1695068498"},{"product_id":"5150-autosport-block-sleeving-service-bmw-m60-m62-s62","title":"5150 AutoSport Block Sleeving Service, BMW M60\/M62\/S62","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW M60\/M62\/S62 Block Sleeving Service: Power and Reliability TOGETHER!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e If your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThoroughgoing Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW M60\/M62\/S62 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include a set of HD Sleeves. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today at \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M60 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1992 - 1996     BMW E34     530i \/ 540i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1992 - 1994     BMW E32     730i \/ 730iL \/ 740i \/ 740iL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1993 - 1996     BMW E31     840Ci\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M62 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996 - 2003     BMW E39     535i \/ 540i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994 - 1996     BMW E38     730i \/ 730iL\u003cbr\u003e1994 - 2001     BMW E38     740i \/ 740iL\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996 - 1999     BMW E31     840Ci\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1999 - 2003     BMW E53     X5 4.4i\u003cbr\u003e2000 - 2003     BMW E53     X5 4.6is\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRange Rover\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2002 - 2005     Range Rover     L322\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46796010914099,"sku":"5150-11-SB-S62","price":4400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S58_27ec5a27-9682-487d-a5ce-c6c11d213871.jpg?v=1694927796"},{"product_id":"5150-autosport-block-sleeving-service-bmw-s65","title":"5150 AutoSport Block Sleeving Service, BMW S65","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW S65 Block Sleeving Service: Power and Reliability TOGETHER!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e If your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThoroughgoing Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW S65 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include a set of HD Sleeves. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today at \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46796031230259,"sku":"5150-11-SB-S65","price":4400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S58_b04bd696-9b21-42a1-8dc7-c1082f238f32.jpg?v=1694928004"},{"product_id":"5150-autosport-block-sleeving-service-bmw-s85","title":"5150 AutoSport Block Sleeving Service, BMW S85","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBMW S85 Block Sleeving Service: Power and Reliability TOGETHER!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e If your engine block has experienced scoring or damage due to failed pistons, traditional repairs may fall short. Our sleeving service offers a comprehensive solution that goes beyond superficial fixes. When other options are no longer viable, sleeving becomes the only avenue to restore and enhance your engine's integrity.\u003c\/p\u003e\n\u003cp\u003eOur Engine Block Sleeving Service encompasses a comprehensive series of essential procedures, all aimed at propelling your BMW's engine to its zenith:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Installation:\u003c\/strong\u003e Leveraging our state-of-the-art CNC machining equipment, our highly skilled machinists adeptly integrate the new sleeves. This process guarantees an impeccable fit within the block, with an unwavering commitment to perfection in every aspect. This meticulous approach lays the groundwork for an impeccable engine foundation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Piston Alignment:\u003c\/strong\u003e Through the process of Boring and Honing, regardless of whether you supply your own pistons or choose from our favorably curated selection, we meticulously bore the new sleeves to exacting tolerances that impeccably align with the new piston specifications. This ensures the harmonious interaction between components for enhanced performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Rejuvenation:\u003c\/strong\u003e The block surface is meticulously refinished to the pinnacle of precision, fostering a seamless seal that doesn't just elevate performance but also thwarts any possibility of leaks. This painstaking attention to detail creates the ideal environment for power and reliability to thrive.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThoroughgoing Cleansing:\u003c\/strong\u003e Our commitment to excellence extends to every nook and cranny of your engine block. Each water and oil gallery undergoes meticulous reworking and is subjected to a comprehensive chemical cleansing regimen. This rigorous purification process readies your block for the subsequent assembly phase, ensuring the highest standards of cleanliness and functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eExperience Power and Reliability:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eSqueeze every horse power out of your \u003c\/span\u003eBMW S85 engine with our Engine Block Sleeving Service. From increased strength to improved reliability, every aspect of your engine's performance will benefit.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #f70909;\"\u003ePrice does NOT include a set of HD Sleeves. \u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eContact our engine build advisors today at \u003cem\u003e\u003cstrong\u003eSales@5150AutoSport.com\u003c\/strong\u003e\u003c\/em\u003e to schedule a consultation and elevate your BMW's performance to unparalleled heights.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":46796050366771,"sku":"5150-11-SB-S85","price":4800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Sleeve-S58_1bede84d-5e7d-490c-9a3e-9d840cb516a0.jpg?v=1694928202"},{"product_id":"cylinder-head-service-bmw-s58","title":"S58 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S58 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S58\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012246855987,"sku":"5150-CH-S58-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012246888755,"sku":"5150-CH-S58-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012246921523,"sku":"5150-CH-S58-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Performance-Machined-BMW-S58-Cylinder-Head.webp?v=1723574342"},{"product_id":"cylinder-head-service-bmw-b58","title":"B58 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW Toyota B58 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=B58\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     F34     340i GT \/ 340i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2020     F32\/F33\/F36     440i \/ 440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G43     M240i \/ M240i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Gen 1 \/ Stage 1","offer_id":50109213212979,"sku":"5150-CH-B58-G1-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Gen 1 \/ Stage 2","offer_id":53012253147443,"sku":"5150-CH-B58-G1-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 1 \/ Pro-Xtreme","offer_id":53012253180211,"sku":"5150-CH-B58-G1-XT","price":6000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Stage 1","offer_id":50109213245747,"sku":"5150-CH-B58-G2-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Stage 2","offer_id":53012253212979,"sku":"5150-CH-B58-G2-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Pro-Xtreme","offer_id":53012253245747,"sku":"5150-CH-B58-G2-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-B58-Performance-Cylinder-Head-Modification-Service.webp?v=1722529668"},{"product_id":"cylinder-head-service-bmw-s55","title":"S55 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S55 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S55\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/MzqhIRW74EU?si=kA_C5_9a5nzykKU-\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/3if11Bjwxpo?si=VOXjY6bAxkHYi4sV\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2020     F87     M2 Competition\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2018     F80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2020     F82     M4\u003cbr\u003e2014-2020     F83     M4\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012235223347,"sku":"5150-CH-S55-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012235256115,"sku":"5150-CH-S55-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012235288883,"sku":"5150-CH-S55-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S55-Performance-Cylinder-Head.webp?v=1750180784"},{"product_id":"cylinder-head-service-bmw-n55","title":"N55 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW N55 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=N55\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2013     E82\/E88     135i\u003cbr\u003e2012-2016     F20\/F21     M135i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2016     F22\/F23     M235i\u003cbr\u003e2016-2018     F87     M2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2015     E90\/E91\/E92\/E93     335i\u003cbr\u003e2012-2015     F30\/F31\/F34     335i\u003cbr\u003e2015-2016     F30\/F31     340i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2016     F32\/F33\/F36     435i\u003cbr\u003e2016     F32\/F33\/F36     440i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2016     F10\/F11     535i\u003cbr\u003e2010-2017     F07     535i GT\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2018     F12\/F13\/F06     640i Gran Coupe\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2015     F01\/F02     740i \/ 740Li\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2015     E84     X1 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2017     F25     X3 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2017     F26     X4 xDrive35i\u003cbr\u003e2016-2017     F26     X4 M40i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2018     E70\/F15     X5 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2019     E71\/F16     X6 xDrive35i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eALPINA N55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2018     F30\/F31     B3 Bi-Turbo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2019     F32\/F33     B4 Bi-Turbo\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012217069875,"sku":"5150-CH-N55-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012217102643,"sku":"5150-CH-N55-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012217135411,"sku":"5150-CH-N55-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-N55-Performance-Cylinder-Head-Build.webp?v=1750357021"},{"product_id":"cylinder-head-service-bmw-m20","title":"M20 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW M20 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/products\/bmw-m20-valve-spring-kit\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/x9sPaY7fXjg?si=lsllCNuMlCFKRAGi\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B20 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1982     E21     320 \/ 326\u003cbr\u003e1982-1994     E30     320i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1981     E12     520 \/ 526\u003cbr\u003e1981-1987     E28     520i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1981-1987     E23     720i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B23 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1982     E21     323i\u003cbr\u003e1982-1994     E30     323i\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B25 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1985-1993     E30     325i \/ 325is \/ 325ix\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1987-1990     E34     525i\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B27 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1982-1987     E30     325e \/ 325es [North America]\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1982-1987     E28     525e \/ 528e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012044251443,"sku":"5150-CH-M20-S1","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012044284211,"sku":"5150-CH-M20-S2","price":2600.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012044316979,"sku":"5150-CH-M20-XT","price":4000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Cylinder-Head-Service.webp?v=1722010541"},{"product_id":"5150-autosport-block-fire-ringing-service","title":"5150 AutoSport Block Fire Ringing Service, 6-Cylinder BMW Engines","description":"\u003ch3\u003e5150 AutoSport Engine Block Fire Ring Installation Service for 6-Cylinder BMW Engines\u003c\/h3\u003e\n\u003cp\u003eFire-ringing an engine block, especially for high-performance, high-boost turbo applications, offers several mechanical advantages. These advantages are primarily related to improving the engine's ability to handle high combustion pressures and temperatures.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePrice includes degrease and wash, CNC machining, block resurfacing, and custom fire ring hoops.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHere are the key mechanical benefits:\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e1. Enhanced Sealing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Improved Combustion Chamber Sealing: \u003c\/strong\u003eFire-ringing creates a more robust seal between the cylinder head and the engine block, preventing the escape of combustion gases. This is crucial for maintaining optimal compression and ensuring that the engine performs efficiently under high boost pressures.\u003cbr\u003e\u003cstrong\u003e- Reduced Blow-By:\u003c\/strong\u003e By providing a better seal, fire-ringing helps to reduce blow-by (the leakage of combustion gases into the crankcase), which can otherwise decrease engine performance and increase wear.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e2. Increased Durability\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Resistance to High Pressure:\u003c\/strong\u003e The fire rings are typically made of high-strength materials that can withstand the increased pressures found in high-boost applications. This helps to prevent head gasket failures, which are common in high-performance engines.\u003cbr\u003e\u003cstrong\u003e- Heat Resistance:\u003c\/strong\u003e Fire rings are designed to endure extreme temperatures, reducing the risk of warping or melting that can occur with standard head gaskets under high thermal loads.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e3. Boost Handling:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Higher Boost Levels: \u003c\/strong\u003eWith improved sealing and durability, engines with fire rings can handle significantly higher boost pressures. This allows for greater power output without compromising engine integrity.\u003cbr\u003e\u003cstrong\u003e- Consistent Performance: \u003c\/strong\u003eThe robust sealing provided by fire-ringing ensures consistent performance, as it minimizes the risk of leaks that can lead to fluctuating compression levels and inconsistent engine behavior.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e4. Prevention of Gasket Failure:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Head Gasket Protection:\u003c\/strong\u003e Fire rings protect the head gasket by providing a secondary barrier to combustion gases. This helps to extend the lifespan of the head gasket, reducing the frequency of repairs and maintenance.\u003cbr\u003e\u003cstrong\u003e- Minimized Distortion:\u003c\/strong\u003e By maintaining a tight seal and reducing the risk of blow-by, fire rings help to prevent the distortion of the cylinder head and block, which can occur under high pressure and temperature conditions.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSuggested Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eBMW M50\u003cbr\u003eBMW M52\u003cbr\u003eBMW S50\u003cbr\u003eBMW S52\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eBMW M52TU\u003cbr\u003eBMW M54\u003cbr\u003eBMW S54\u003cbr\u003e\u003cbr\u003eBMW N52\u003cbr\u003eBMW N54\u003cbr\u003e\u003cbr\u003eBMW N55\u003cbr\u003eBMW S55\u003cbr\u003e\u003cbr\u003eBMW \/ Toyota B58\u003cbr\u003eBMW S58\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49669853217075,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Engine-Fire-Ringing-Service-at-5150-AutoSport.webp?v=1721834789"},{"product_id":"5150-autosport-block-fire-ringing-service-8-cylinder-bmw-engines","title":"5150 AutoSport Block Fire Ringing Service, 8-Cylinder BMW Engines","description":"\u003ch3\u003e5150 AutoSport Engine Block Fire Ring Installation Service for 6-Cylinder BMW Engines\u003c\/h3\u003e\n\u003cp\u003eFire-ringing an engine block, especially for high-performance, high-boost turbo applications, offers several mechanical advantages. These advantages are primarily related to improving the engine's ability to handle high combustion pressures and temperatures.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\" data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePrice includes degrease and wash, CNC machining, block resurfacing, and custom fire ring hoops.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHere are the key mechanical benefits:\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e1. Enhanced Sealing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Improved Combustion Chamber Sealing: \u003c\/strong\u003eFire-ringing creates a more robust seal between the cylinder head and the engine block, preventing the escape of combustion gases. This is crucial for maintaining optimal compression and ensuring that the engine performs efficiently under high boost pressures.\u003cbr\u003e\u003cstrong\u003e- Reduced Blow-By:\u003c\/strong\u003e By providing a better seal, fire-ringing helps to reduce blow-by (the leakage of combustion gases into the crankcase), which can otherwise decrease engine performance and increase wear.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e2. Increased Durability\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Resistance to High Pressure:\u003c\/strong\u003e The fire rings are typically made of high-strength materials that can withstand the increased pressures found in high-boost applications. This helps to prevent head gasket failures, which are common in high-performance engines.\u003cbr\u003e\u003cstrong\u003e- Heat Resistance:\u003c\/strong\u003e Fire rings are designed to endure extreme temperatures, reducing the risk of warping or melting that can occur with standard head gaskets under high thermal loads.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e3. Boost Handling:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Higher Boost Levels: \u003c\/strong\u003eWith improved sealing and durability, engines with fire rings can handle significantly higher boost pressures. This allows for greater power output without compromising engine integrity.\u003cbr\u003e\u003cstrong\u003e- Consistent Performance: \u003c\/strong\u003eThe robust sealing provided by fire-ringing ensures consistent performance, as it minimizes the risk of leaks that can lead to fluctuating compression levels and inconsistent engine behavior.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e4. Prevention of Gasket Failure:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Head Gasket Protection:\u003c\/strong\u003e Fire rings protect the head gasket by providing a secondary barrier to combustion gases. This helps to extend the lifespan of the head gasket, reducing the frequency of repairs and maintenance.\u003cbr\u003e\u003cstrong\u003e- Minimized Distortion:\u003c\/strong\u003e By maintaining a tight seal and reducing the risk of blow-by, fire rings help to prevent the distortion of the cylinder head and block, which can occur under high pressure and temperature conditions.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSuggested Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003eBMW M50\u003cbr\u003eBMW M52\u003cbr\u003eBMW S50\u003cbr\u003eBMW S52\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003eBMW M52TU\u003cbr\u003eBMW M54\u003cbr\u003eBMW S54\u003cbr\u003e\u003cbr\u003eBMW N52\u003cbr\u003eBMW N54\u003cbr\u003e\u003cbr\u003eBMW N55\u003cbr\u003eBMW S55\u003cbr\u003e\u003cbr\u003eBMW \/ Toyota B58\u003cbr\u003eBMW S58\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49670259704115,"sku":null,"price":1800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/8-Cylinder-Engine-Fire-Ringing-Service-at-5150-AutoSport.webp?v=1721834889"},{"product_id":"5150-autosport-cylinder-head-o-ringing-service-6-cylinder-bmw-engines","title":"Cylinder Head O-Ringing Service, 6-Cylinder BMW Engines","description":"\u003ch3\u003e5150 AutoSport Cylinder Head O-Ring Installation Service for 6-Cylinder BMW Engines\u003c\/h3\u003e\n\u003cp\u003eO-ringing an engine cylinder head for high-performance, high-boost turbo applications provides several mechanical advantages. These advantages primarily focus on improving the engine's sealing capabilities and durability under extreme conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePrice includes head resurfacing and wash.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eKey mechanical benefits of O-ringing an engine cylinder head:\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e1. Superior Sealing:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Enhanced Compression Seal: \u003c\/strong\u003eO-ringing creates a more effective seal between the cylinder head and the engine block. This helps to maintain higher and more consistent compression ratios, which is crucial for performance in high-boost turbo applications.\u003cbr\u003e\u003cstrong\u003e- Leak Prevention:\u003c\/strong\u003e By providing a reliable seal, O-rings help to prevent the leakage of combustion gases and coolant. This is essential for maintaining the engine's efficiency and preventing loss of power.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e2. Handling High Boost Pressures:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Resistance to High Pressures: \u003c\/strong\u003eO-rings are typically made of materials that can withstand the elevated pressures associated with high-boost turbo engines. This makes the engine more capable of handling increased boost levels without experiencing head gasket failures.\u003cbr\u003e\u003cstrong\u003e- Stability Under Boost:\u003c\/strong\u003e The improved sealing provided by O-rings ensures that the engine maintains stable performance under high boost pressures, reducing the risk of pressure-related failures.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e3. Durability and Longevity:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Reduced Gasket Wear:\u003c\/strong\u003e The O-rings provide additional support to the head gasket, reducing wear and tear and extending the life of the gasket. This is particularly beneficial in high-performance applications where the engine is subjected to extreme conditions.\u003cbr\u003e\u003cstrong\u003e- Protection Against Distortion:\u003c\/strong\u003e By maintaining a tight seal, O-rings help to prevent distortion of the cylinder head and engine block, which can occur under high pressure and temperature conditions. This helps to preserve the structural integrity of the engine components.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e4. Improved Thermal Handling:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Heat Resistance:\u003c\/strong\u003e O-rings are often made from materials that can endure high temperatures, contributing to better thermal management in the engine. This helps to prevent overheating and thermal damage to the cylinder head and gasket.\u003cbr\u003e\u003cstrong\u003e- Minimized Thermal Expansion Effects: \u003c\/strong\u003eThe tight seal provided by O-rings helps to minimize the effects of thermal expansion, ensuring that the seal remains intact even as the engine heats up and cools down.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e5. Enhanced Performance Consistency:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Reliable Power Output: \u003c\/strong\u003eBy ensuring a consistent and reliable seal, O-rings help to maintain consistent engine performance. This is critical in high-performance applications where even minor inconsistencies can lead to significant performance drops.\u003cbr\u003e\u003cstrong\u003e- Reduced Maintenance Needs: \u003c\/strong\u003eThe durability and reliability of the seal provided by O-rings reduce the frequency of maintenance and repairs, allowing for more continuous and reliable engine operation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e6. Prevention of Fluid Contamination:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Reduced Blow-By: \u003c\/strong\u003eThe improved sealing helps to reduce blow-by, which is the leakage of combustion gases past the piston rings into the crankcase. This helps to keep the engine oil cleaner and reduces the risk of oil contamination.\u003cbr\u003e\u003cstrong\u003e- Coolant Protection:\u003c\/strong\u003e The seal also helps to prevent coolant from leaking into the combustion chambers or oil passages, which can prevent engine overheating and oil dilution.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSuggested Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003eBMW M20\u003cbr\u003eBMW M30\u003cbr\u003eBMW S38 B35\u003cbr\u003eBMW S38 B36\u003cbr\u003eBMW S38 B38\u003cbr\u003eBMW M50\u003cbr\u003eBMW M52\u003cbr\u003eBMW S50\u003cbr\u003eBMW S52\u003cbr\u003eBMW S50B30\u003cbr\u003eBMW S50B32\u003cbr\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eBMW M52TU\u003cbr\u003e\u003c\/span\u003eBMW M54\u003cbr\u003eBMW S54\u003cbr\u003eBMW N52\u003cbr\u003eBMW N54\u003cbr\u003eBMW N55\u003cbr\u003eBMW S55\u003cbr\u003eBMW B58\u003cbr\u003eToyota B58\u003cbr\u003eBMW S58\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49670319997235,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Cylinder-Head-O-Ringing.webp?v=1722890982"},{"product_id":"5150-autosport-cylinder-head-o-ringing-service-8-cylinder-bmw-engines","title":"Cylinder Head O-Ringing Service, 8-Cylinder BMW Engines","description":"\u003ch3\u003e5150 AutoSport Cylinder Head O-Ring Installation Service for 8-Cylinder BMW Engines\u003c\/h3\u003e\n\u003cp\u003eO-ringing an engine cylinder head for high-performance, high-boost turbo applications provides several mechanical advantages. These advantages primarily focus on improving the engine's sealing capabilities and durability under extreme conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePrice includes head resurfacing and wash.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eKey mechanical benefits of O-ringing an engine cylinder head:\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e1. Superior Sealing:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Enhanced Compression Seal: \u003c\/strong\u003eO-ringing creates a more effective seal between the cylinder head and the engine block. This helps to maintain higher and more consistent compression ratios, which is crucial for performance in high-boost turbo applications.\u003cbr\u003e\u003cstrong\u003e- Leak Prevention:\u003c\/strong\u003e By providing a reliable seal, O-rings help to prevent the leakage of combustion gases and coolant. This is essential for maintaining the engine's efficiency and preventing loss of power.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e2. Handling High Boost Pressures:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Resistance to High Pressures: \u003c\/strong\u003eO-rings are typically made of materials that can withstand the elevated pressures associated with high-boost turbo engines. This makes the engine more capable of handling increased boost levels without experiencing head gasket failures.\u003cbr\u003e\u003cstrong\u003e- Stability Under Boost:\u003c\/strong\u003e The improved sealing provided by O-rings ensures that the engine maintains stable performance under high boost pressures, reducing the risk of pressure-related failures.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e3. Durability and Longevity:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e- Reduced Gasket Wear:\u003c\/strong\u003e The O-rings provide additional support to the head gasket, reducing wear and tear and extending the life of the gasket. This is particularly beneficial in high-performance applications where the engine is subjected to extreme conditions.\u003cbr\u003e\u003cstrong\u003e- Protection Against Distortion:\u003c\/strong\u003e By maintaining a tight seal, O-rings help to prevent distortion of the cylinder head and engine block, which can occur under high pressure and temperature conditions. This helps to preserve the structural integrity of the engine components.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e4. Improved Thermal Handling:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Heat Resistance:\u003c\/strong\u003e O-rings are often made from materials that can endure high temperatures, contributing to better thermal management in the engine. This helps to prevent overheating and thermal damage to the cylinder head and gasket.\u003cbr\u003e\u003cstrong\u003e- Minimized Thermal Expansion Effects: \u003c\/strong\u003eThe tight seal provided by O-rings helps to minimize the effects of thermal expansion, ensuring that the seal remains intact even as the engine heats up and cools down.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e5. Enhanced Performance Consistency:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Reliable Power Output: \u003c\/strong\u003eBy ensuring a consistent and reliable seal, O-rings help to maintain consistent engine performance. This is critical in high-performance applications where even minor inconsistencies can lead to significant performance drops.\u003cbr\u003e\u003cstrong\u003e- Reduced Maintenance Needs: \u003c\/strong\u003eThe durability and reliability of the seal provided by O-rings reduce the frequency of maintenance and repairs, allowing for more continuous and reliable engine operation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e6. Prevention of Fluid Contamination:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e- Reduced Blow-By: \u003c\/strong\u003eThe improved sealing helps to reduce blow-by, which is the leakage of combustion gases past the piston rings into the crankcase. This helps to keep the engine oil cleaner and reduces the risk of oil contamination.\u003cbr\u003e\u003cstrong\u003e- Coolant Protection:\u003c\/strong\u003e The seal also helps to prevent coolant from leaking into the combustion chambers or oil passages, which can prevent engine overheating and oil dilution.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSuggested Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eM60\u003cbr\u003eM62\u003cbr\u003eS62\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eS65\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eN62\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eN63\u003cbr\u003eS63\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eS68\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49670421676339,"sku":null,"price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Resurfaced-BMW-S63-Cylinder-Head-with-Fire-Rings-and-Performance-Valves.webp?v=1757367120"},{"product_id":"b58-combustion-chamber-upgrade","title":"B58 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW and Toyota B58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing clean, disassembled core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW \/ Toyota B58 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     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Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986091483443,"sku":"5150-CCM-B58","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Cylinder-Head-Service.webp?v=1722010541"},{"product_id":"s58-combustion-chamber-upgrade-service","title":"S58 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW S58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S58 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986101182771,"sku":"5150-CCM-S58","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylinder-Head-Chamber-Modification-Service.webp?v=1722531375"},{"product_id":"b48-combustion-chamber-upgrade","title":"B48 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW and Toyota B48 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW \/ Toyota B48 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019\u003cmeta charset=\"utf-8\"\u003e    F20\u003cmeta charset=\"utf-8\"\u003e    120i \/ 125i\u003cbr\u003e2019-2023     F40     118i \/ 120i \/ 128ti \/ 135i \/ M135i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2024-Present     F70     120 \/ M135i \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2021     F22\/F23     218i \/ 220i \/ 230i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2014-2017     F45     220 \/ 225i\u003cbr\u003e2021-Present     G42     218i \/ 220i \/ 230i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2021-Present     U06     223i\u003cbr\u003e2020-2024     F44     218i \/ 220i \/ 228i \/ M235i\u003cbr\u003e2025-Present     F74     M235\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cmeta charset=\"utf-8\"\u003e2015-2019     F30\/F31\/F34     320i \/ 330i \/ 330e\u003cbr\u003e2018-Present     G20\/G21     318i \/ 320i \/ 330i \/ 330e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019\u003cmeta charset=\"utf-8\"\u003e    F32\/F33\/F36\u003cmeta charset=\"utf-8\"\u003e    420i \/ 430i\u003cbr\u003e2020-Present     G22\/G23\/G26     420i \/ 430i \/ 430e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-Present     G30\/G31     520i \/ 530i \/ 530e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-Present     G32     630i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2022     G11\/G12     730i \/ 730Li \/ 740e \/ 740Le\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2022     F48     sDrive18i \/ sDrive20i \/ xDrive20i \/ 25i \/ xDrive25i \u003cmeta charset=\"utf-8\"\u003e\/ 28i\u003cbr\u003e2022-Present     U11     sDrive18i \/ xDrive20i \/ xDrive28i \/ M35i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023     F39     sDrive18i \/ sDrive20i \/ xDrive20i \/ 25i \/ xDrive25i \/ 28i \/ M35i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2023-Present     U10     xDrive28i \/ M35i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2024     G01     sDrive20i \/ xDrive20i \/ xDrive30i \/ \u003cmeta charset=\"utf-8\"\u003exDrive30e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2025-Present     G45     xDrive20e \/ \u003cmeta charset=\"utf-8\"\u003exDrive30e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G02     xDrive20i \/ xDrive30i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     xDrive25i \/ sDrive25i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G29     Z4 sDrive20i \/ sDrive30i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eToyota B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cmeta charset=\"utf-8\"\u003e2019-Present     J29\/DB82\/DB22 Supra\u003cbr\u003e2020-Present     GR Supra 2.0  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMINI B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Hatch [F55\/F56\/F57]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-Present     Cooper S\u003cbr\u003e2015-Present     John Cooper Works (JCW)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Clubman [F54]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-Present     Cooper S\u003cbr\u003e2016-Present     John Cooper Works (JCW)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Convertible [F57]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-Present     Cooper S\u003cbr\u003e2016-Present     John Cooper Works (JCW) \u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986135064883,"sku":"5150-CCM-B48","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Cylinder-Head-Service.webp?v=1722010541"},{"product_id":"n20-n26-combustion-chamber-upgrade-service","title":"N20 \/ N26 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW N20 and N26 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\" data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\" data-mce-href=\"mailto:sales@5150AutoSport.com\" data-mce-style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW N20 and N26 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW N20 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2011-2015     F20\/F21     116i \/ 118i \/ 120i \/ 125i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2014-2016     F22\/F23     220i \/ 228i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2012-2016     F30\/F31     320i \/ 328i\u003cbr\u003e2013-2016     F34     320i \/ 328i GT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2013-2016     F32\/F33     420i \/ 428i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2011-2017     F10\/F11     520i \/ 528i\u003cbr\u003e2011-2017     F07     520i \/ 528i GT\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2012-2017     E84     X1 sDrive20i \/ xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2012-2017     F25     X3 sDrive20i \/ xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2014-2016     F26     X4 xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2013-2014     F15     X5 xDrive25i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2011-2016     E89     Z4 sDrive20i \/ sDrive28i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW N26 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2013-2016     F30\/F31     320i \/ 328i \/ 328i xDrive\u003cbr\u003e2014-2016     F34     328i \/ 328i xDrive GT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2014-2016     F32\/F33     428i \/ 428i xDrive\u003cbr\u003e2014-2016     F36     428i \/ 428i xDrive Gran Coupe\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2012-2016     F10     528i \/ 528i xDrive\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2013-2015     E84     X1 xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2013-2017     F25     X3 xDrive28i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986139193651,"sku":"5150-CCM-N20","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Cylinder-Head-Service.webp?v=1722010541"},{"product_id":"s55-combustion-chamber-upgrade-service","title":"S55 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW S55 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S55 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2020     F87     M2 Competition\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2018     F80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2020     F82     M4\u003cbr\u003e2014-2020     F83     M4\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986148466995,"sku":"5150-CCM-S55","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S55-Combustion-Chamber-Modification.webp?v=1750357059"},{"product_id":"n55-combustion-chamber-upgrade","title":"N55 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW N55 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW N55 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW N55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2013     E82\/E88     135i\u003cbr\u003e2012-2016     F20\/F21     M135i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2016     F22\/F23     M235i\u003cbr\u003e2016-2018     F87     M2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2015     E90\/E91\/E92\/E93     335i\u003cbr\u003e2012-2015     F30\/F31\/F34     335i\u003cbr\u003e2015-2016     F30\/F31     340i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2016     F32\/F33\/F36     435i\u003cbr\u003e2016     F32\/F33\/F36     440i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2016     F10\/F11     535i\u003cbr\u003e2010-2017     F07     535i GT\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2018     F12\/F13\/F06     640i Gran Coupe\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2015     F01\/F02     740i \/ 740Li\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2015     E84     X1 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2017     F25     X3 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2017     F26     X4 xDrive35i\u003cbr\u003e2016-2017     F26     X4 M40i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2018     E70\/F15     X5 xDrive35i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2019     E71\/F16     X6 xDrive35i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eALPINA N55 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2018     F30\/F31     B3 Bi-Turbo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2019     F32\/F33     B4 Bi-Turbo\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986159575347,"sku":"5150-CCM-N55","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-N55-Combustion-Chamber-Modification.webp?v=1750357702"},{"product_id":"s54-combustion-chamber-upgrade","title":"S54 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW S54 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing clean, disassembled core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S54 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S54 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E46     M3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2001-2002     Z3     M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2006-2008     Z4     M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986162557235,"sku":"5150-CCM-S54","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylinder-Head-Chamber-Modification-Service.webp?v=1722531375"},{"product_id":"m50-m52-s50-s52-combustion-chamber-upgrade-service","title":"M50 M52 S50 S52 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW E34 and E36 M50 \/ M52 \/ S50 \/ S52 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\" data-mce-style=\"color: rgb(255, 42, 0);\" data-mce-href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW E34 \/ E36 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW M50 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1990-1995     E36     320i \/ 325i \/ 325is\u003cbr\u003e1994-1996     E35\/E36     318ti\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1990-1996     E34     520i \/ 525i\u003cbr\u003e1991-1996     E34 Touring     520i \/ 525i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1995     E36\/E37     Z3 2.0i \/ 2.5i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW M52 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994-1999     E36     320i \/ 323i \/ 323is \/ 328i \/ 328is\u003cbr\u003e1997-2000     E35\/E36     318ti \/ 323ti\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1998     E39     520i \/ 523i \/ 528i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1998     E38     728i \/ 728iL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36\/E37\/E38     Z3 2.0i \/ 2.2i \/ 2.8i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S50 US Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994-1995     E36     M3\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S52 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36     M3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1998-2000     E36\/E37\/E38     Z3M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"M50 Non-VANOS","offer_id":53017294111027,"sku":"5150-CCM-M50-NV","price":600.0,"currency_code":"USD","in_stock":true},{"title":"M50 VANOS","offer_id":53017294143795,"sku":"5150-CCM-M50","price":600.0,"currency_code":"USD","in_stock":true},{"title":"M52","offer_id":53017294176563,"sku":"5150-CCM-M52","price":600.0,"currency_code":"USD","in_stock":true},{"title":"S50","offer_id":53017294209331,"sku":"5150-CCM-S50","price":600.0,"currency_code":"USD","in_stock":true},{"title":"S52","offer_id":53017294242099,"sku":"5150-CCM-S52","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylinder-Head-Chamber-Modification-Service.webp?v=1722531375"},{"product_id":"s63-cylinder-head-service","title":"S63 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S63 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S63\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e\u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=N63\u0026amp;sort_by=best-selling\"\u003e\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/3RvQZZUFDh8?si=PrDJbFXhwdrMuJ5X\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S63 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011 - 2016 BMW F10 M5\u003cbr\u003e2017 - 2023 BMW F90 M5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012 - 2018 BMW F12 M6\u003cbr\u003e2012 - 2018 BMW F13 M6\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 M Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2013 BMW E70 X5 M\u003cbr\u003e2015-2018 BMW F85 X5 M\u003cbr\u003e2019-2023 BMW F95 X5 M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X6 M Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2014 BMW E71 X6 M\u003cbr\u003e2015-2018 BMW F86 X6 M\u003cbr\u003e2019-2023 BMW F96 X6 M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023 BMW G15 M850i\u003cbr\u003e2018-2023 BMW G16 M850i Gran Coupe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-2023 BMW F91 M8 Convertible\u003cbr\u003e2019-2023 BMW F92 M8 Coupe\u003cbr\u003e2019-2023 BMW F93 M8 Gran Coupe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW ALPINA Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023 BMW ALPINA B5 Bi-Turbo\u003cbr\u003e2016-2023 BMW ALPINA G12 B7\u003cbr\u003e2020-2023 BMW ALPINA G07 XB7\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"F10\/F11\/F12\/F13\/F15\/F16\/F01\/F02 \/ Stage 1","offer_id":50210862825779,"sku":"5150-CH-S63-F10-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"F10\/F11\/F12\/F13\/F15\/F16\/F01\/F02 \/ Stage 2","offer_id":53010178113843,"sku":"5150-CH-S63-F10-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"F10\/F11\/F12\/F13\/F15\/F16\/F01\/F02 \/ Pro-Xtreme","offer_id":53010178146611,"sku":"5150-CH-S63-F10-XT","price":7500.0,"currency_code":"USD","in_stock":true},{"title":"F90\/F91F92\/F93\/F95\/F96\/G05\/G07 \/ Stage 1","offer_id":50210862858547,"sku":"5150-CH-S63-F90-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"F90\/F91F92\/F93\/F95\/F96\/G05\/G07 \/ Stage 2","offer_id":53010178179379,"sku":"5150-CH-S63-F90-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"F90\/F91F92\/F93\/F95\/F96\/G05\/G07 \/ Pro-Xtreme","offer_id":53010178212147,"sku":"5150-CH-S63-F90-XT","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Performance-Cylinder-Head.webp?v=1757367147"},{"product_id":"s63-combustion-chamber-upgrade","title":"S63 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW S63 V8 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S63 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S63 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011 - 2016 BMW F10 M5\u003cbr\u003e2017 - 2023 BMW F90 M5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012 - 2018 BMW F12 M6\u003cbr\u003e2012 - 2018 BMW F13 M6\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 M Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2013 BMW E70 X5 M\u003cbr\u003e2015-2018 BMW F85 X5 M\u003cbr\u003e2019-2023 BMW F95 X5 M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X6 M Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2014 BMW E71 X6 M\u003cbr\u003e2015-2018 BMW F86 X6 M\u003cbr\u003e2019-2023 BMW F96 X6 M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023 BMW G15 M850i\u003cbr\u003e2018-2023 BMW G16 M850i Gran Coupe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-2023 BMW F91 M8 Convertible\u003cbr\u003e2019-2023 BMW F92 M8 Coupe\u003cbr\u003e2019-2023 BMW F93 M8 Gran Coupe\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW ALPINA Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023 BMW ALPINA B5 Bi-Turbo\u003cbr\u003e2016-2023 BMW ALPINA G12 B7\u003cbr\u003e2020-2023 BMW ALPINA G07 XB7\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50139111751987,"sku":"5150-CCM-S63","price":800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Ported-Cylinder-Head.webp?v=1757367147"},{"product_id":"b48-cnc-cylinder-head-service","title":"B48 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW B48 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=B48\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019\u003cmeta charset=\"utf-8\"\u003e    F20\u003cmeta charset=\"utf-8\"\u003e    120i \/ 125i\u003cbr\u003e2019-2023     F40     118i \/ 120i \/ 128ti \/ 135i \/ M135i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2024-Present     F70     120 \/ M135i \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2021     F22\/F23     218i \/ 220i \/ 230i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2014-2017     F45     220 \/ 225i\u003cbr\u003e2021-Present     G42     218i \/ 220i \/ 230i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2021-Present     U06     223i\u003cbr\u003e2020-2024     F44     218i \/ 220i \/ 228i \/ M235i\u003cbr\u003e2025-Present     F74     M235\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cmeta charset=\"utf-8\"\u003e2015-2019     F30\/F31\/F34     320i \/ 330i \/ 330e\u003cbr\u003e2018-Present     G20\/G21     318i \/ 320i \/ 330i \/ 330e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019\u003cmeta charset=\"utf-8\"\u003e    F32\/F33\/F36\u003cmeta charset=\"utf-8\"\u003e    420i \/ 430i\u003cbr\u003e2020-Present     G22\/G23\/G26     420i \/ 430i \/ 430e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-Present     G30\/G31     520i \/ 530i \/ 530e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-Present     G32     630i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2022     G11\/G12     730i \/ 730Li \/ 740e \/ 740Le\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2022     F48     sDrive18i \/ sDrive20i \/ xDrive20i \/ 25i \/ xDrive25i \u003cmeta charset=\"utf-8\"\u003e\/ 28i\u003cbr\u003e2022-Present     U11     sDrive18i \/ xDrive20i \/ xDrive28i \/ M35i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2023     F39     sDrive18i \/ sDrive20i \/ xDrive20i \/ 25i \/ xDrive25i \/ 28i \/ M35i\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2023-Present     U10     xDrive28i \/ M35i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2024     G01     sDrive20i \/ xDrive20i \/ xDrive30i \/ \u003cmeta charset=\"utf-8\"\u003exDrive30e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e2025-Present     G45     xDrive20e \/ \u003cmeta charset=\"utf-8\"\u003exDrive30e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G02     xDrive20i \/ xDrive30i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     xDrive25i \/ sDrive25i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G29     Z4 sDrive20i \/ sDrive30i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eToyota B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cmeta charset=\"utf-8\"\u003e2019-Present     J29\/DB82\/DB22 Supra\u003cbr\u003e2020-Present     GR Supra 2.0  \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMINI B48 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Hatch [F55\/F56\/F57]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-Present     Cooper S\u003cbr\u003e2015-Present     John Cooper Works (JCW)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Clubman [F54]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-Present     Cooper S\u003cbr\u003e2016-Present     John Cooper Works (JCW)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMINI Convertible [F57]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-Present     Cooper S\u003cbr\u003e2016-Present     John Cooper Works (JCW)\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53018867204403,"sku":"5150-CH-B48-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53018867237171,"sku":"5150-CH-B48-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53018867269939,"sku":"5150-CH-B48-XT","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Performance-Cylinder-Head-Machining-Service.webp?v=1722010541"},{"product_id":"n20-n26-cnc-cylinder-head-service","title":"N20 \/ N26 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW N20 N26 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=N20\u0026amp;filter.v.m.mm-google-shopping.custom_label_0=N26\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N20 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2015     F20\/F21     116i \/ 118i \/ 120i \/ 125i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2016     F22\/F23     220i \/ 228i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2016     F30\/F31     320i \/ 328i\u003cbr\u003e2013-2016     F34     320i \/ 328i GT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2016     F32\/F33     420i \/ 428i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2017     F10\/F11     520i \/ 528i\u003cbr\u003e2011-2017     F07     520i \/ 528i GT\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2017     E84     X1 sDrive20i \/ xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2017     F25     X3 sDrive20i \/ xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2016     F26     X4 xDrive20i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2014     F15     X5 xDrive25i \/ xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011-2016     E89     Z4 sDrive20i \/ sDrive28i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N26 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2016     F30\/F31     320i \/ 328i \/ 328i xDrive\u003cbr\u003e2014-2016     F34     328i \/ 328i xDrive GT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2014-2016     F32\/F33     428i \/ 428i xDrive\u003cbr\u003e2014-2016     F36     428i \/ 428i xDrive Gran Coupe\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012-2016     F10     528i \/ 528i xDrive\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2015     E84     X1 xDrive28i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2013-2017     F25     X3 xDrive28i\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"N20 \/ Stage 1","offer_id":53018868744499,"sku":"5150-CH-N20-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"N20 \/ Stage 2","offer_id":53018868777267,"sku":"5150-CH-N20-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"N20 \/ Pro-Xtreme","offer_id":53018868810035,"sku":"5150-CH-N20-XT","price":3800.0,"currency_code":"USD","in_stock":true},{"title":"N26 \/ Stage 1","offer_id":53018868842803,"sku":"5150-CH-N26-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"N26 \/ Stage 2","offer_id":53018868875571,"sku":"5150-CH-N26-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"N26 \/ Pro-Xtreme","offer_id":53018868908339,"sku":"5150-CH-N26-XT","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Performance-Cylinder-Head-Machining-Service.webp?v=1722010541"},{"product_id":"s58-cylinder-head-porting","title":"S58 5-Axis CNC Cylinder Head Porting by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW S58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing \u003cmeta charset=\"utf-8\"\u003edisassembled, clean core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your high-performance BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWe only use CNC equipment\u003c\/strong\u003e\u003c\/em\u003e, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\n\u003cstrong\u003eService Includes:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eMulti-Angle CNC Porting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003ePorting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a \u003c\/span\u003esmooth, more efficient path for exhaust to flow out of the combustion chamber. \u003c\/p\u003e\n\u003cp\u003eBecause we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50167166271795,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-High-Performance-Cylinder-Head.webp?v=1723574342"},{"product_id":"n63-cnc-cylinder-head-service","title":"N63 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW N63 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=N63\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N63 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2017     BMW F07      550i\u003cbr\u003e2011–2016     BMW F10      550i\u003cbr\u003e2017–Present     BMW G30      M550i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012–2018     BMW F06     650i\u003cbr\u003e2012–2018     BMW F12     650i    \u003cbr\u003e2012–2018     BMW F13     650i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009–2015     BMW F01\/F02     750i\/750Li\u003cbr\u003e2015–Present      BMW G11\/G12     750i\/750Li\u003cbr\u003e2017–Present     BMW G12     M750Li xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018–Present     BMW G14     M850i xDrive\u003cbr\u003e2018–Present     BMW G15     M850i xDrive\u003cbr\u003e2018–Present     BMW G16     M850i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2013     BMW E70     X5 xDrive50i\u003cbr\u003e2014–2018     BMW F15     X5 xDrive50i\u003cbr\u003e2019–2023     BMW G05     X5 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2014     BMW E71     X6 xDrive50i\u003cbr\u003e2015–2019     BMW F16     X6 xDrive50i\u003cbr\u003e2019–2023     BMW G06     X6 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018–2019     BMW G07     X7 xDrive50i\u003cbr\u003e2019–2022     BMW G07     X7 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011–2016     BMW F10 Alpina     B5 Bi-Turbo\u003cbr\u003e2017–Present     BMW G30 Alpina     B5 Bi-Turbo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012–2018     BMW F06\/F12\/F13 Alpina     B6 Bi-Turbo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2015     BMW F01 Alpina     B7 Bi-Turbo\u003cbr\u003e2015–2019     BMW G12 Alpina     B7 Bi-Turbo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina XB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020–2022     BMW G07 Alpina     XB7\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53010161271091,"sku":"5150-CH-N63-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53010161303859,"sku":"5150-CH-N63-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53010161336627,"sku":"5150-CH-N63-XT","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Ported-Cylinder-Head.webp?v=1757367147"},{"product_id":"n63-combustion-chamber-upgrade-service","title":"N63 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW N63 V8 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S63 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N63 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2017     BMW F07      550i\u003cbr\u003e2011–2016     BMW F10      550i\u003cbr\u003e2017–Present     BMW G30      M550i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012–2018     BMW F06     650i\u003cbr\u003e2012–2018     BMW F12     650i    \u003cbr\u003e2012–2018     BMW F13     650i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009–2015     BMW F01\/F02     750i\/750Li\u003cbr\u003e2015–Present      BMW G11\/G12     750i\/750Li\u003cbr\u003e2017–Present     BMW G12     M750Li xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018–Present     BMW G14     M850i xDrive\u003cbr\u003e2018–Present     BMW G15     M850i xDrive\u003cbr\u003e2018–Present     BMW G16     M850i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2013     BMW E70     X5 xDrive50i\u003cbr\u003e2014–2018     BMW F15     X5 xDrive50i\u003cbr\u003e2019–2023     BMW G05     X5 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2014     BMW E71     X6 xDrive50i\u003cbr\u003e2015–2019     BMW F16     X6 xDrive50i\u003cbr\u003e2019–2023     BMW G06     X6 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018–2019     BMW G07     X7 xDrive50i\u003cbr\u003e2019–2022     BMW G07     X7 M50i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2011–2016     BMW F10 Alpina     B5 Bi-Turbo\u003cbr\u003e2017–Present     BMW G30 Alpina     B5 Bi-Turbo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2012–2018     BMW F06\/F12\/F13 Alpina     B6 Bi-Turbo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010–2015     BMW F01 Alpina     B7 Bi-Turbo\u003cbr\u003e2015–2019     BMW G12 Alpina     B7 Bi-Turbo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina XB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020–2022     BMW G07 Alpina     XB7\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50173173334323,"sku":"5150-CCM-N63","price":800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Ported-Cylinder-Head.webp?v=1757367147"},{"product_id":"b58-cylinder-head-porting","title":"B58 5-Axis CNC Cylinder Head Porting by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW \/ Toyota B58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing \u003cmeta charset=\"utf-8\"\u003edisassembled, clean core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your high-performance BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWe only use CNC equipment\u003c\/strong\u003e\u003c\/em\u003e, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\n\u003cstrong\u003eService Includes:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eMulti-Angle CNC Porting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003ePorting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a \u003c\/span\u003esmooth, more efficient path for exhaust to flow out of the combustion chamber. \u003c\/p\u003e\n\u003cp\u003eBecause we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     F34     340i GT \/ 340i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2020     F32\/F33\/F36     440i \/ 440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50173199483187,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"bmw-5-axis-cnc-cylinder-head-porting-by-5150-autosport","title":"BMW 5-Axis CNC Cylinder Head Porting","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\" data-mce-style=\"color: rgb(255, 42, 0);\" data-mce-href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your high-performance BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. 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35%;\"\u003eS14\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-4\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS50 US\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS50B30 \/ S50B32 Euro\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS52\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS54\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS62\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS65\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS63\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS55\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS58\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS68\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-style=\"padding-left: 40px;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eDon't see your application above? Contact our sales team via: \u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003eSales@5150AutoSport.com\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Inline-4","offer_id":50173291069747,"sku":"","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"Inline-6","offer_id":50173291102515,"sku":"","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"V8","offer_id":50173291135283,"sku":"","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"V10","offer_id":50892912754995,"sku":null,"price":2400.0,"currency_code":"USD","in_stock":true},{"title":"V12","offer_id":50892912787763,"sku":null,"price":2800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-High-Performance-Cylinder-Head.webp?v=1723574342"},{"product_id":"bmw-cnc-combustion-chamber-upgrade-service","title":"BMW CNC Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Modification Service for BMW Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan data-mce-style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\" data-mce-href=\"mailto:sales@5150AutoSport.com\" data-mce-style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. 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63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eAvailable BMW \/\/M Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ctable width=\"100%\" style=\"width: 58.545455%; height: 52px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 17px;\"\u003e\n\u003ctd style=\"width: 35%; height: 17px;\"\u003e Engine Code\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%; height: 17px;\"\u003e\n\u003cp\u003eEngine Layout\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd style=\"width: 35%; height: 35px;\"\u003eS38\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%; height: 35px;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS14\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-4\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS50 US\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS50B30 \/ S50B32 Euro\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS52\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS54\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS62\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS65\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS63\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS55\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS58\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eInline-6\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 35%;\"\u003eS68\u003c\/td\u003e\n\u003ctd style=\"width: 63.125%;\"\u003e\n\u003cp\u003eV-8\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-mce-style=\"padding-left: 40px;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-style=\"padding-left: 40px;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eDon't see your application above? Contact our sales team via: \u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003eSales@5150AutoSport.com\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Inline-4","offer_id":50177999077683,"sku":null,"price":400.0,"currency_code":"USD","in_stock":true},{"title":"Inline-6","offer_id":50177999110451,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true},{"title":"V8","offer_id":50177999143219,"sku":null,"price":800.0,"currency_code":"USD","in_stock":true},{"title":"V10","offer_id":50892902891827,"sku":null,"price":1000.0,"currency_code":"USD","in_stock":true},{"title":"V12","offer_id":50892906332467,"sku":null,"price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Performance-Cylinder-Head-Porting-Service.webp?v=1722525611"},{"product_id":"s65-cnc-cylinder-head-service","title":"S65 CNC Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S65 V8 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S65\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S65 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2007 - 2011     BMW E90\/E92\/E93     M3\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53010153341235,"sku":"5150-CH-S65-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53010153374003,"sku":"5150-CH-S65-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53010153406771,"sku":"5150-CH-S65-XT","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Ported-Cylinder-Head.webp?v=1757367147"},{"product_id":"m60-m62-cnc-cylinder-head-service","title":"M60 \/ M62 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW M60 and M62 V8 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/products\/bmw-m60-m62-valve-spring-kit-by-5150-autosport\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M60 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1992 - 1996     BMW E34     530i \/ 540i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1992 - 1994     BMW E32     730i \/ 730iL \/ 740i \/ 740iL\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1993 - 1996     BMW E31     840Ci\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M62 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996 - 2003     BMW E39     535i \/ 540i\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994 - 1996     BMW E38     730i \/ 730iL\u003cbr\u003e1994 - 2001     BMW E38     740i \/ 740iL\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 8 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996 - 1999     BMW E31     840Ci\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1999 - 2003     BMW E53     X5 4.4i\u003cbr\u003e2000 - 2003     BMW E53     X5 4.6is\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRange Rover\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2002 - 2005     Range Rover     L322\u003cbr\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"M60 \/ Stage 1","offer_id":50211101245747,"sku":"5150-CH-M60-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"M60 \/ Stage 2","offer_id":53010141643059,"sku":"5150-CH-M60-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"M60 \/ Pro-Xtreme","offer_id":53010141675827,"sku":"5150-CH-M60-XT","price":7500.0,"currency_code":"USD","in_stock":true},{"title":"M62 \/ Stage 1","offer_id":50211101278515,"sku":"5150-CH-M62-S1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"M62 \/ Stage 2","offer_id":53010141708595,"sku":"5150-CH-M62-S2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"M62 \/ Pro-Xtreme","offer_id":53010141741363,"sku":"5150-CH-M62-XT","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-M60-Performance-Cylinder-Head-Machining-Service.webp?v=1729523772"},{"product_id":"s62-cnc-cylinder-head-service","title":"S62 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S62 V8 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S62 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1998 - 2003     BMW E39     M5\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000 - 2003     BMW E52     Z8\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53010113364275,"sku":"5150-CH-S62-ST1","price":2000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53010113397043,"sku":"5150-CH-S62-ST2","price":5000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53010113429811,"sku":"5150-CH-S62-XT","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S63-Ported-Cylinder-Head.webp?v=1757367147"},{"product_id":"n54-cnc-cylinder-head-service","title":"N54 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW N54 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=N54\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW N54 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2007-2010     E82\/E88     135i\u003cbr\u003e2011-2012     E82     1M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2006-2010     E90\/E91\/E92\/E93     335i\u003cbr\u003e2011-2013     E92\/E93     335is\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2008-2010     E60\/E61     535i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2012     F01\/F02     740i \/ 740Li\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2008-2010     E71     X6 xDrive35i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2009-2016     E89     Z4 sDrive35i\u003cbr\u003e2010-2016     E89     Z4 sDrive35is\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2007-2013     E90\/E91\/E92\/E93     B3 Bi-Turbo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina B3 S Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2010-2013     E90\/E91\/E92\/E93     B3 S Bi-Turbo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlpina D3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2008-2013     E90\/E91\/E92\/E93     D3 Bi-Turbo\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012133806387,"sku":"5150-CH-N54-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012133839155,"sku":"5150-CH-N54-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012133871923,"sku":"5150-CH-N54-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"b58-oversized-head-stud-installation-service","title":"B58 Oversized Head Stud Installation Service","description":"\u003cp\u003eFor high-performance BMW \/ Toyota B58 engines pushing extreme power, head gasket failures and cylinder head cracks can become an issue. If your engine has experienced these problems, our B58 Oversized Head Stud Installation Service may be the solution. Designed for engines running our special oversized B58 head studs with ARP insert washers, this service is ideal for restoring and strengthening engines subjected to intense boost levels and power output.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eService Details:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Clearance:\u003c\/strong\u003e We precision-clearance the cylinder head, preparing it for the oversized studs and insert washers, addressing any damage or cracking from high pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlock Machining: \u003c\/strong\u003eOur BMW Performance experts machine the block to repair thread damage and ensure the oversized studs fit perfectly, creating a stronger foundation for your engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Washer Installation:\u003c\/strong\u003e The ARP insert washers are installed to provide maximum clamping force and durability, critical for engines with extreme demands.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis service is essential for B58 engines that have seen head gasket failure, head cracks, or thread damage under ultra-high-performance conditions, or those who anticipate running high horsepower and high boost in street or racing applications. By reinforcing your engine with our expert machining and stud installation, you'll safeguard against future failures and push your performance limits with confidence.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     F34     340i GT \/ 340i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2020     F32\/F33\/F36     440i \/ 440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Parts Only","offer_id":50211805856051,"sku":"","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"Parts + Labor","offer_id":50211870769459,"sku":"","price":2999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/ARP-Oversized-Head-Studs-for-BMW-Engines.webp?v=1746212567"},{"product_id":"s58-oversized-head-stud-installation-service","title":"S58 Oversized Head Stud Installation Service","description":"\u003cp\u003eFor high-performance BMW S58 engines pushing extreme power, head gasket failures and cylinder head cracks can become an issue. If your engine has experienced these problems, our S58 Oversized Head Stud Installation Service may be the solution. Designed for engines running our special oversized S58 head studs with ARP insert washers, this service is ideal for restoring and strengthening engines subjected to intense boost levels and power output.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eService Details:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Clearance:\u003c\/strong\u003e We precision-clearance the cylinder head, preparing it for the oversized studs and insert washers, addressing any damage or cracking from high pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlock Machining: \u003c\/strong\u003eOur BMW Performance experts machine the block to repair thread damage and ensure the oversized studs fit perfectly, creating a stronger foundation for your engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Washer Installation:\u003c\/strong\u003e The ARP insert washers are installed to provide maximum clamping force and durability, critical for engines with extreme demands.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis service is essential for S58 engines that have seen head gasket failure, head cracks, or thread damage under ultra-high-performance conditions, or those who anticipate running high horsepower and high boost in street or racing applications. By reinforcing your engine with our expert machining and stud installation, you'll safeguard against future failures and push your performance limits with confidence.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\" data-mce-style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Parts Only","offer_id":50211873161523,"sku":null,"price":1499.99,"currency_code":"USD","in_stock":true},{"title":"Parts + Labor","offer_id":50211873227059,"sku":null,"price":2999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Oversized-Head-Studs.webp?v=1746212567"},{"product_id":"m40-m42-m43-m44-cylinder-head-service","title":"M40 \/ M42 \/ M43 \/ M44 CNC Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW M40 M42 M43 M44 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S50+Euro\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M40 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1987-1994     E30     316i \/ 318i\u003cbr\u003e1991-1993     E36     316i \/ 318i \/ 318is\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1988-1992     E34     518i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M42 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1989-1991     E30     318i \/ 318is\u003cbr\u003e1992-1996     E36     318i \/ 318is\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M43 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1993-1998     E36     316i \/ 318i \/ 318is\u003cbr\u003e1998-2001     E46     316i \/ 318i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1994-1996     E34     518i\u003cbr\u003e1995-2000     E39     518i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1995-1999     E36\/7     Z3 1.8i\u003cbr\u003e1999-2000     E36\/7     Z3 1.9i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M44 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36     318i \/ 318is\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1996-1999     E36\/7     Z3 1.9i\u003cbr\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"M40 \/ Stage 1","offer_id":50216043512115,"sku":"5150-CH-M40-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"M40 \/ Stage 2","offer_id":53018872807731,"sku":"5150-CH-M40-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"M40 \/ Pro-Xtreme","offer_id":53018872840499,"sku":"5150-CH-M40-XT","price":3800.0,"currency_code":"USD","in_stock":true},{"title":"M42 \/ Stage 1","offer_id":50216043544883,"sku":"5150-CH-M42-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"M42 \/ Stage 2","offer_id":53018872873267,"sku":"5150-CH-M42-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"M42 \/ Pro-Xtreme","offer_id":53018872906035,"sku":"5150-CH-M42-XT","price":3800.0,"currency_code":"USD","in_stock":true},{"title":"M43 \/ Stage 1","offer_id":50216043577651,"sku":"5150-CH-M43-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"M43 \/ Stage 2","offer_id":53018872938803,"sku":"5150-CH-M43-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"M43 \/ Pro-Xtreme","offer_id":53018872971571,"sku":"5150-CH-M43-XT","price":3800.0,"currency_code":"USD","in_stock":true},{"title":"M44 \/ Stage 1","offer_id":50216043610419,"sku":"5150-CH-M44-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"M44 \/ Stage 2","offer_id":53018873004339,"sku":"5150-CH-M44-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"M44 \/ Pro-Xtreme","offer_id":53018873037107,"sku":"5150-CH-M44-XT","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Performance-Cylinder-Head-Machining-Service.webp?v=1722010541"},{"product_id":"m30-cylinder-head-porting","title":"M30 5-Axis CNC Cylinder Head Porting by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW M30 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing \u003cmeta charset=\"utf-8\"\u003edisassembled, clean core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your high-performance BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWe only use CNC equipment\u003c\/strong\u003e\u003c\/em\u003e, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\n\u003cstrong\u003eService Overview:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eMulti-Angle CNC Porting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003ePorting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a \u003c\/span\u003esmooth, more efficient path for exhaust to flow out of the combustion chamber. \u003c\/p\u003e\n\u003cp\u003eBecause we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M30 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW New Six\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1968-1977     E3     2500 \/ 2800\u003cbr\u003e1974-1977     E3     2.8 Bavaria \/ 3.0 Bavaria\u003cbr\u003e1971-1977     E3     3.0S \/ 3.0Si\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1980-1982     E21     323i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1972-1981     E12     525 \/ 528 \/ 530i\u003cbr\u003e1981-1988     E28     528i \/ 533i \/ 535i\u003cbr\u003e1988-1993     E34     535i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1976-1989     E24     630CS \/ 633CSi \/ 635CSi\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1986     E23     728 \/ 728i \/ 730 \/ 730i \/ 733i \/ 735i\u003cbr\u003e1986-1992     E32     730i \/ 735i \/ 735iL\u003cbr\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50217695641907,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"s54-cylinder-head-service","title":"S54 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S54 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S54\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S54 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E46     M3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2001-2002     Z3     M\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2006-2008     Z4     M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012124533043,"sku":"5150-CH-S54-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012124565811,"sku":"5150-CH-S54-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012124598579,"sku":"5150-CH-S54-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"m54-cnc-cylinder-head-service","title":"M54 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW M54 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=M54\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M54 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E46     320i \/ 320Ci\u003cbr\u003e2000-2006     E46     325i \/ 325xi \/ 325Ci\u003cbr\u003e2000-2006     E46     330i \/ 330xi \/ 330Ci\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2003     E39     520i [Europe]\u003cbr\u003e2000-2003     E39     525i \u003cbr\u003e2000-2003     E39     530i\u003cbr\u003e\u003cbr\u003e2003-2005     E60\/E61     525i\u003cbr\u003e2003-2005     E60\/E61     530i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2001     E38     730i \/ 730Li [Europe]\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2002     Z3     2.2i \/ 2.5i \/ 3.0i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Z4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2002-2005     Z4     2.5i \/ 3.0i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2003-2006     E83     X3 2.5i \/ 3.0i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW X5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2000-2006     E53     X5 3.0i\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012112245043,"sku":"5150-CH-M54-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012112277811,"sku":"5150-CH-M54-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012112310579,"sku":"5150-CH-M54-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"m10-cylinder-head-service","title":"M10 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW M10 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW M10 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW New Class Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1962-1964      1500\u003cbr\u003e1964-1971      1600\u003cbr\u003e1963-1971      1800\u003cbr\u003e1965-1972      2000\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 02 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1975-1977      1502\u003cbr\u003e1966-1975      1602\u003cbr\u003e1971-1975      1802\u003cbr\u003e1968-1976      2002\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1975-1983     E21     316 \/ 318 \/ 320\u003cbr\u003e\u003cbr\u003e1982-1987     E30     316\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1974-1981     E12     518 \/ 520\u003cbr\u003e\u003cbr\u003e1981-1988     E28     518i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePhotos for reference only - B48 cylinder head pictured\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53018859995443,"sku":"5150-CH-M10-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53018860028211,"sku":"5150-CH-M10-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53018860060979,"sku":"5150-CH-M10-XT","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Performance-Cylinder-Head-Machining-Service.webp?v=1722010541"},{"product_id":"s14-cylinder-head-service","title":"S14 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S14 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S14\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S14 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW S14B20\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1989-1991      E30     320is [Portugal and Italy]\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW S14B23\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1986-1991      E30     M3\u003cbr\u003e1986-1987      E30     M3 Evo I\u003cbr\u003e1988      E30     M3 Evo II\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW S14B25\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1990      E30     M3 Sport Evo (Evo III)\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003ePhotos for reference only - B48 cylinder head pictured\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53018775159091,"sku":"5150-CH-S14-S1","price":1000.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53018775191859,"sku":"5150-CH-S14-S2","price":2500.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53018775224627,"sku":"5150-CH-S14-XT","price":3800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S14-Cylinder-Head-in-Rottler-5-Axis-CNC-Machine.webp?v=1736192962"},{"product_id":"m20-cylinder-head-porting","title":"M20 5-Axis CNC Cylinder Head Porting by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW M20 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlso note that this service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your high-performance BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWe only use CNC equipment\u003c\/strong\u003e\u003c\/em\u003e, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\n\u003cstrong\u003eService Overview:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eMulti-Angle CNC Porting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003ePorting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a \u003c\/span\u003esmooth, more efficient path for exhaust to flow out of the combustion chamber. \u003c\/p\u003e\n\u003cp\u003eBecause we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B20 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1982     E21     320 \/ 326\u003cbr\u003e1982-1994     E30     320i\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1981     E12     520 \/ 526\u003cbr\u003e1981-1987     E28     520i\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1981-1987     E23     720i\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B23 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1977-1982     E21     323i\u003cbr\u003e1982-1994     E30     323i\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B25 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1985-1993     E30     325i \/ 325is \/ 325ix\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1987-1990     E34     525i\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eBMW M20B27 Applications:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1982-1987     E30     325e \/ 325es [North America]\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1982-1987     E28     525e \/ 528e\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50250286039347,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"},{"product_id":"s38-5-axis-cnc-cylinder-head-porting","title":"S38 5-Axis CNC Cylinder Head Porting by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW S38 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThis service includes a 1-2 week turnaround time for service completion, beginning when the 5150 Team receives your head.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInvesting in cylinder head porting for your BMW engine enhances airflow efficiency for improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWe only use CNC equipment\u003c\/strong\u003e\u003c\/em\u003e, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\n\u003cstrong\u003eService Overview:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cstrong\u003eMulti-Angle CNC Porting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003ePorting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a \u003c\/span\u003esmooth, more efficient path for exhaust to flow out of the combustion chamber. \u003c\/p\u003e\n\u003cp\u003eBecause we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. \u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S38B35 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1985-1987     E28     M5 [European Market]\u003cbr\u003e1987-1988     E28     M5 [American Market]\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1984-1989     E24     M635CSi [European Market]\u003cbr\u003e1987-1989     E24     M6 [American Market]\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S38B36 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1988-1992     E34     M5\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S38B38 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBMW 5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e1992-1995     E34     M5 [European Market]\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50250344956211,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Intake-and-Exhaust-Cylinder-Head-Machining-Service.webp?v=1757367147"}],"url":"https:\/\/5150autosport.com\/collections\/performance-services.oembed?page=9","provider":"5150 AutoSport","version":"1.0","type":"link"}