ARP Main Stud Kits
There are many important reasons to use ARP main stud kits, including eliminating main cap walk and fretting, as well as protecting the threads in your engine block. Each kit comes complete with hardened parallel-ground washers and high-quality nuts for secure fastening.
Some applications feature provisions for mounting windage trays and include specially designed standoff studs with serrated lock nuts to position and securely lock the windage tray in place. The studs are made from 8740 chrome moly steel, heat-treated in-house to a 190,000 psi tensile strength, and feature precision J-form threads rolled after heat-treatment. This results in threads that are 2000% stronger than standard fasteners, ensuring durability and reliability in high-performance engine builds.