Main Stud Kit for Ford 390-428 cid FE series (12 pt nuts, 8 studs & 2 bolts for #5 cap) - no modific

Main Stud Kit for Ford 390-428 cid FE series (12 pt nuts, 8 studs & 2 bolts for #5 cap) - no modificThere 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

are stronger and ratedat 190

They run-in straight and true

A “must” for any serious engine builder

They’re application-specific

Alternators that come loose are a pain

ARP’s Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 190

It costs a lot more to do it this way

000 psi range

000 psi for the ARP2000® material

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

You will note that ARP studs feature a special “bullet nose” to guide the nut accurately into place

allowing forslight misalignment