ARP Racing Fastener Technology

In order to overcome the ever popular head gasket failures on todays high performance diesel engines, industry leader ARP has introduced extra heavy-duty head studs for the popular Ford, Dodge and GM diesel powerplants. These ARP studs are rated at extreme psi tensile strength, and provide the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. The studs are manufactured in ARP's Santa Paula, CA plant from proprietary ARP 2000, 8740, and Custom Age Materials with threads rolled after heat-treat to provide optimum fatigue strength. They are center-less ground to assure perfect concentricity. The ends of the studs are broached to facilitate easy installation. This feature also enables the cylinder head to be removed in tight quarters. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers. They are black oxide finished for extra durability and include a packet of ARPs own Ultra-Torque fastener lubricant.