Cylinder Head Stud Kit for BB Chevy 8.1L (496cid)

Cylinder Head Stud Kit for BB Chevy 8.1L (496cid)It 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

ARP manufactures a variety of special application-specific bolt and stud kits

As the crankshaft flexes and twists

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

They’re designed to make it as easy as possible to install a pan and seal it properly

000 psi tensile strength material where noted

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for the additional compression of gaskets

000 psi and precision machined for optimum thread engagement

They are both forged from aerospace alloy and heat-treated prior to thread rollingand machining

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

ARP has developed these sophisticated and durable pushrods

12-point designs

This procedure (done only to the shorter studs)more equalizes the “stretch” of both studs