Main Bolt Kit for Chrysler 426 Hemi with cross bolts

Main Bolt Kit for Chrysler 426 Hemi with cross boltsFar superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly steel, all ARP main bolts feature a reduced renching head, large underhead radius and rolled threads for the utmost in reliability. The threads are rolled after heat treating which gives them about 2000% better fatigue strength than most main

premiumgrade aerospace chrome moly steel

ARP has developed the “Pro” Series Wave-Loc bolts

You’ll note that the studs have a radiused bullet nose that serves to locate the pan rails

It is for good reason that virtually every top professional enginebuilder relies on ARP Pro Series head studs for their all-out competitionpowerplants

Higher Performance Series: Made of 8740 chrome moly forgings and heat-treated to180

square drive forged into bolt head

There are many important reasons to use ARP main stud kits

One of the most critical – yet often overlooked – fasteners used in any engine locks the timing in place

Forged from 8740 chrome moly steel

because it’stough on tooling

They’re made from premium grade aerospace chrome moly and centerless ground to precise diameter

and the favoriteof leading professional engine builders in all forms of racing