The ARP head stud kit for the 2009 - 2016 BMW S1000RR Motorcycle is designed to provide improved clamping force for the cylinder head to the engine block. The kit includes high-strength, heat-treated studs, premium-grade parallel ground washers, and 12-point nuts.
The ARP head studs 201-4306 are made from premium-grade 8740 chromoly steel, which is stronger and more durable than the factory bolts. The studs are heat-treated to 200,000 psi tensile strength and precision-machined to ensure consistent, accurate torque values.
The parallel ground washers included in the kit are designed to distribute the clamping load evenly across the cylinder head, reducing the risk of head gasket failure. The 12-point nuts feature a hardened, parallel-ground washer face and a precision thread-rolling process for consistent, accurate torque values.
Overall, the ARP head stud kit for the BMW S1000RR engine is designed to provide improved clamping force and reliability for high-performance and racing applications.
Installation Instructions:
1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary with ARP Thread Chaser.
2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length and dimension.
3. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD SEALER.
4. Screw studs into the block “HAND TIGHT ONLY”.
5. Install the cylinder head(s) and check for binding or misalignment.
6. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
Then install the washers and the nuts onto the studs and tighten them hand tight.
ARP recommends using the ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used.
Please note: After initial assembly, it is necessary to allow the engine to complete a full heat cycle, then re-torque your head studs to spec. This means allowing the engine to warm up to its normal operating temperature, remain at operating temperature for several minutes to ensure each component is uniformly heated, then turned off and cooled completely to ambient temperature.
