Cylinder Head Stud Kit for BB Chevy 7/16in w/alum block

Cylinder Head Stud Kit for BB Chevy 7/16in w/alum blockIt 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

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

They feature a special billet aluminum sleeve that accurately positions the shaft and keeps it from wobbling

A premium grade 8740 alloy chrome moly steel is used to manufacture ARP High Performance connecting rod bolts

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

and monitor overall length during installation

Nuts not included

These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants

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

Cycle testing hows ARP High Performance rod bolts to be nearly five times more reliable than stock bolts

All High Performance Series bolts are 180

000 psi and High Performance Series that are rated at 180

ARP has developed these ultra strong 190