The strongest bolts available! Top engine builders demand quality fasteners! Secure your engine with complete confidence Superior in strength and performance to any other cylinder stud head bolt kit on the market, this kit is designed to exceed the needs of high performance engines. Dont Risk Head Gasket Failure! Stock Cylinder studs are designed as a stretch to torque stud with a one time use only lifespan Feuling studs are installed to a torque spec can be reused and carry a lifetime warranty Heat-treated 8740 chrome moly steel studs Precision j-form threads for optimum engagement, to prevent galling and promote more consistent torque loading. Special alloyed stainless steel head bolts Manufactured by ARP to Feulings exact specifications Recommended for all V-Twin engines Stock replacement Kit includes 8 cylinder studs, 8 head bolts with under head length (UHL) 3.125", moly assembly lubricant and thread sealant