Kit comes with (10) head studs, (10) parallel ground washers, and (10) 12-point nuts needed for a direct bolt on, as well as the ARP moly-lube and instruction sheet. Studs are 8470 chrome moly steel, with a black oxide coating for corrosion resistance. The studs are thread-rolled after heat treat, and center-less ground which results in a studs that has 2000% better fatigue strength than others. ARP studs are rated at 200,000 PSI. Using studs will make it much easier to assemble an engine (especially a racing power plant which must be serviced frequently and quickly!) with the cylinder head and gasket assured of proper alignment. Studs Provide more accurate and consistent torque loading ( When you use bolts to secure the head, the fastener is actually being twisted while it's being torqued to the proper reading.
