Main Bolt Kit for Chrysler 273-440 Wedge, reduced head height hex

Main Bolt Kit for Chrysler 273-440 Wedge, reduced head height hexFar 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

drive toolMade from heat-treated 8740 chrome moly steel withheavy-duty black oxide finish

they are the best on the market today

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

and monitor overall length during installation

drive ratchet orbreaker bar to facilitate rotating the crank assembly

000 psi and precision machined for optimum thread engagement

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts

That’s whythe fastener experts at ARP have developed special bolts that are far superior to OEM hardware

Measure the fastener prior to starting

Your choice of chrome moly steel or polished stainless (nominally rated at 180

then allow the nuts to be easily installed without the worry of cross-threading

allowing forslight misalignment