ARP Main Stud Kit, BMW S38

This ARP Main Stud Kit is designed to replace BMW 07119912680 for the S38B35, S38B36, and S38B38 found in the E24, E28, and E34 M5 and M6 chassis.  Upgrading from factory main bolts to ARP Main Studs is a simple, yet greatly beneficial upgrade. ARP Main Studs offer the following benefits:  - Uniform Clamping Force: ARP Main Studs provide a uniform clamping force that OEM bolts cannot. With the improved distribution of pressure across main bearing caps comes better, more precise crank alignment for stability and longevity.  - Improved Block Stability and Rigidity: ARP Main Studs improve block rigidity and therefore stability. This ensures maximum power transfer from the crank to the drivetrain, which in turn ensures:  - Improved Throttle Response - Greater Horsepower - Higher Torque Output - Prevent Main Cap Walk: This occurs as main caps shift and move out of position, which can cause crank and engine damage - Reduced Risk of Fastener Stretching: Under high RPM applications and high lo