Main Stud Kit for Chevrolet Large journal (12 pt nuts)

Main Stud Kit for Chevrolet Large journal (12 pt nuts)There 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

All of them are substantially better than the stock OEM and most aftermarket bolts

enabling the sleeve to float

The shaft is made from heat-treated

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

To be used with ARP’s patented Perma-Loc™ adjusters

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

Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12-point nuts

000 psi to ensure extended service life of this valuable tool

The stud kits come complete with a special locking flanged nut

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

Simply stated

threadpitch to thread pitch