Cylinder Head Stud Kit for GM Pre '03 CA625+ 12pt

Cylinder Head Stud Kit for GM Pre '03 CA625+ 12ptIt 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 Pro Series head bolt kits are application specific and designed to deliversuperior strength typically associated with competition engines

Drive pins are rated 190

self-locking nuts

they are the best on the market today

000 psi (which is 15%stronger than Grade 8) and kits come complete with hardened parallel-ground washers

which makes for amore consistent clamping force – and one that compensates forhead gasket compression when the cylinder heads are installed

You won’t find abetter quality stud on the market from any other source

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

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

or using a spacer for clearance

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

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