Cylinder Head Stud Kit for 396-402-427-454 Cast iron OEM, Mark IV w/ World Products Merlin heads - 8

Cylinder Head Stud Kit for 396-402-427-454 Cast iron OEM, Mark IV w/ World Products Merlin heads - 8It is for good reason that virtually every top professional enginebuilder relies on ARP Pro Series head studs for their all out competitionpowerplants. Simply stated, theres not a better stud setupon the market today. For openers, ARP only uses premium grade 8740 alloy anda proprietary ARP2000 alloy that are rated far superior to aircraftquality alloy steels. Secondly, each stud is placed verticallyinto special racks and precisely heat treated to

Both models feature a large diameter

Special ARP Pro Series NASCAR type stud kits have one of the studs drilled to facilitate sealing the carburetor in the engine by race officials

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

ARP quality delivers increasedpre-load clamping force and assures positive timing gear register

This procedure ensures complete heat penetration and the resultsare far superior to those lesser quality studs from other manufacturerswho just dump pieces in a basket and hope for the best

heat-treated in-house to 190

or use the chart on page 25 of thiscatalog for ARP fasteners

Kits come complete with flat washers

A true high performance washer from ARP

It costs a lot more to do it this way

All Pro Series bolts are cold-forged to ensure molecular integrity

They’re made from premium grade aerospace chrome moly and centerless ground to precise diameter