Instruction Sheets for Part Number ARP-135-5002
ARP High Performance Series Main Bolts
Main Bolts, High Performance Series, 2-Bolt Main, Chevy, Big Block, Kit
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Estimated Ship Date: Monday 10/19/2026 Would you rather pick it up?
Overview
ARP High Performance Series Main Bolts
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.
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