ARP Head Stud Kit - 2044203 - This kit is designed to provide superior clamping force and eliminate head gasket failure. It includes ARP's Pro Series head studs made from 8740 chrome moly steel, hardened washers and parallel ground nuts. The studs are nominally rated at 220,000 psi and are available with a variety of thread sizes and lengths. Suitable for use in a wide range of engines.