Main Stud Kit for Pontiac 400-455 cid

Main Stud Kit for Pontiac 400-455 cidThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs

in conjunction with aftermarket I-beam rods

They run-in straight and true

with handy 12-pointor standard hex heads

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

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

You have a choice between conventional hex head bolts and nuts or compact

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

Studs are preferred by many Pro engine builders because they eliminate the chance of pinching gaskets and contribute to easier engine assembly

ARP offers two styles of Flexplate bolts: premium grade Pro Series rated at 190

ARP offers a special version of its rugged 190

each stud is placed verticallyinto special racks and precisely heat-treated to 190

They are designed for each specific application and provide the optimum grip