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

Install an ARP cam bolt kit and end your camshaft timing worries

which gives themabout 2000% (that’s twenty times) better fatigue strength thanthose studs that are threaded prior to heat-treat (a very commonindustry practice)

Available inblack oxide finished chrome moly or rust-proofstainless steel

while the bolt kits come with washers

The parts are CNC machined from solid aluminum billet (6061) or 1018 mild steel

Choice of conventional hex or space-saving 12-point nuts

All kits come complete with hardened parallel-ground washers and high quality nuts

Bracket Racing

You will note that ARP studs feature a special “bullet nose” to guide the nut accurately into place

When the bolt hasstretched the specified amount

This material is easily contaminated and subject to stress corrosion

Camshaft positioning is critical on overhead cam engines and ARP makes sure that the cam towers are properly secured through use of these durable bolts and studs