ARP Ford 302 R Block 1/2" studs Main Stud Kit (254-5601) Rocket Manufacturer's Part Number: 129384030

Manufacturer's Part Number: 129384030

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ARP Ford 302 R Block 1/2" studs Main Stud Kit (254-5601) Rocket Manufacturer's Part Number: 129384030ARP Ford 302 R block 1 2" studs main stud kit (254 5601) ARP Main Stud Kits 254 5601 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