8740 Chrome-Moly Steel Cylinder Head Stud Kit

The ARP 208-4302 Cylinder Head Stud Kit is engineered to provide enhanced clamping force, addressing head gasket failures common in high-performance or modified engines. These studs boast a formidable tensile strength of 200,000 PSI, ensuring the cylinder heads remain securely in place even under extreme combustion pressures. Constructed from premium 8740 chrome-moly steel, these ARP studs are manufactured in Santa Paula, CA. The threads are rolled after heat-treatment to maximize fatigue strength, and the studs are centerless ground for precise concentricity. For simplified installation, the ends are broached, which also aids in cylinder head removal in confined spaces. The kit includes heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers, all finished with a durable black oxide coating.