ARP Main Stud Kit, BMW M20

The ARP Main Stud Kit has been expertly designed to work seamlessly and replace BMW Part #11111735525 for the BMW M20 B20, B23, B25, B27 engines, which were utilized in various BMW models such as the E12, E21, E28, E30, E34 3 Series, 5 Series, and 6 Series.

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 loads, factory main bolts are prone to stretching and deforming.