Main Stud Kit - Hex Nuts - 2-Bolt Mains - Chromoly - Black Oxide - Supercharged - GM V6 - Kit

ARP 99+ Pontiac Supercharged 3800 L67 Hex Main Stud Kit

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Main Studs, Chromoly, Hex Head, Buick, 3.8L, Supercharged, Kit

ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.