ARP 250-5801 Ford 7.3L PowerStroke Main Stud Kit

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These ARP 250-5801 main studs are made from 8740 chromoly steel and have a 200,000 psi tensile-strength rating. They are precision centerless-ground and thread-rolled to MIL-S-8879 specs, with a black oxide finish for corrosion resistance. The kits come complete with hardened washers and high-strength hex nuts.