ARP Diesel Head Stud Kit

Part #: 247-4202, 247-4203, 247-4204

It is a proven fact that OEM head bolts are the weak link in a diesel engine, especially if the engine has been modified. Typically they are assembled from the factory using Torque-To-Yield bolts and preloaded to yield and sometimes more. Any increase in combustion pressure can lead to problems like blown head gaskets or catastrophic engine failure.

It is for good reason that virtually every top professional engine builder relies on ARP studs for competition powerplants. Using head studs instead of standard bolts provides your engine with the clamping force requires to keep your cylinder head from lifting due to higher combustion pressures.