There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting,
as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and
high quality nuts. Some applications have provisions for mounting windage trays and have specially designed stand-off studs
with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome
moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after
heat-treat to create a fastener that has threads 2000% stronger than others.
