ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

More From This Category

ARP Main Bolts, High Performance Series, 2-Bolt Main, Small Journal, For Chevrolet, Small Block, Kit

ARP Main Bolts, High Performance Series, 2-Bolt Main, Small Journal, For Chevrolet, Small Block, Kit

$74.28

View
ARP Main Bolts, High Performance Series, 4-bolt Main, Hex, Designed To Fit Dart SHP Cast Iron Engine Blocks, Kit

ARP Main Bolts, High Performance Series, 4-bolt Main, Hex, Designed To Fit Dart SHP Cast Iron Engine Blocks, Kit

$112.74

View
ARP Main Bolts, High Performance Series, 4-Bolt Main, Large Journal, For Chevrolet, Small Block, Kit

ARP Main Bolts, High Performance Series, 4-Bolt Main, Large Journal, For Chevrolet, Small Block, Kit

$107.85

View