HIGH PERFORMANCE SERIES High Performance head bolts are made of 8740 chrome moly and available with a reduced wrenching hex or 12-point with a wide area flanged head. They are nominally rated at 180,000 psi and kits come complete with hardened parallel-ground washers.
PROFESSIONAL SERIES All Pro Series bolts are designed for competition applications and are rated nominally at 200,000 psi. Available with undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to balance the longer bolts and compensate for the additional compression of gaskets.
