BMW S54 3.5L Bully Engine Build by 5150 AutoSport

The Bully Engine isn't just a rebuild – it's a statement. It represents the pinnacle of automotive engineering and a commitment to excellence that is unmatched. For those who demand the best, there is only one choice: The Bully Engine by 5150 AutoSport. Dominate the road with confidence and precision.

Each Bully Engine undergoes a comprehensive disassembly and meticulous inspection by our team of expert technicians. From there, our skilled craftsmen rebuild the engine with precision and care, utilizing top-of-the-line components.

No detail is spared in our pursuit of perfection. Every gasket, seal, and component between the oil pan and valve cover is cleaned, replaced, or upgraded to ensure upmost performance and reliability. The result is a powerhouse engineered for the highest horsepower and boost applications, ready to push the boundaries of automotive performance.

Price includes engine disassembly and inspection. Based on customer providing good engine core.

Featured Component Upgrades:

Fully Built 3.5L Engines

• Capable of producing up to 500 horsepower Naturally aspirated or 1500+HP Turbo. 

• Engineered to rev up to 9,600 RPM

• Assembled from valve cover to oil pan – fully turn-key, ready to install

• Ported cylinder head for enhanced airflow and performance

• High-performance camshafts

• DLC-coated followers for reduced friction and long-term durability

• Choice of heavy-duty VANOS hub or VANOS delete kit, depending on application

• Forged pistons for high-pressure strength

• Forged connecting rods for maximum RPM reliability

• Billet stroker crankshaft for increased displacement and structural integrity

• 5150 main and rod bearings with CT1 performance coating for exceptional wear resistance and oil film retention