Cylinder Head Stud Kit for 396-402-427-454 Cast iron OEM, Mark IV w/ World Products Merlin heads - 1

Cylinder Head Stud Kit for 396-402-427-454 Cast iron OEM, Mark IV w/ World Products Merlin heads - 1It 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

Fittings are available with female pipe threads

each stud is centerless ground to makeit as close to perfectly concentric as possible

you will note that gaskets and cylinder headsliterally glide into position and are perfectly aligned – somethingthat won’t happen with inferior quality head studs

has been applied

12-point head design and larger than stock shank diameter for increased strength and improved flywheel register

J-form thread rolling after heat-treat and a special profile

Complete with washers

insulated plastic carrying case for protection

Higher Performance Series: Made of 8740 chrome moly forgings and heat-treated to 180

If there is a permanent increase of

000 psi tensile strength material and proprietary (ARP2000®) 220

when the material iseasier to machine)