The key to optimum combustion chamber sealing and long-term reliability, ARP head studs are the ideal replacement for factory TTY (Torque To Yield) bolts that are yielded in the assembly process and should never be re-used. Moreover, ARP head studs for the Gen III Hemi are made from heat-treated 8740 chrome-moly SDF material that is nominally rated at 190,000 psi tensile strength to facilitate increased clamping force. They are engineered for high combustion pressure applications, including supercharging, turbocharging or use of nitrous oxide. The kits include parallel-ground washers, 12-point nuts and a packet of ARP Ultra-Torque® fastener lubricant. All ARP fasteners have threads that are rolled (not cut) after heat treatment.
Petty's Garage installs ARP head studs in all of its high performance HEMI engine builds.
