Main Stud Kit for Chevrolet World - Motown iron block w/ outer bolts (for #2, 3 & 4)

Main Stud Kit for Chevrolet World - Motown iron block w/ outer bolts (for #2, 3 & 4)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

An extralarge radius base offers greater resistance to flex

heat-treated prior to thread rolling and machining

Kits come complete with flat washers

This helps prevent blown head gaskets

all ARP main bolts feature a reduced renching head

Far superior to any other main bolts available for use in competition engines

You also can choose between standard hex head bolts or compact 12-point fasteners

allowing forslight misalignment

substantially stronger than Grade 8 hardware

because it’stough on tooling

Those first moments an engine runs prior to building oil pressure are when damage can easily occur