This ARP head stud kit is made from 8740 chromemoly steel, 190,000 psi tensile strength. It is precision centerless ground and thread rolled to Mil-S-8879 specs. The kit includes black oxide finish studs, hardened washers, and premium grade nuts
The studs in this main stud kit are made from 8740 chromemoly steel, and have 190,000 psi tensile strength rating. They are precision centerless ground and thread rolled to Mil-S-8879 specs. They feature a black oxide finish, hardened washers and hex nuts.