Kit comes with: ---(10) head studs ---(10) parallel ground washers ---(10) 12-point nuts needed for a direct bolt on, ---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-treated and centerless 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 machine 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.
