Description

This ARP 234-5201 SBC Pro Series Main Bolt Kit is for 4-bolt Large Journal engines. It comes with 190,000 PSI 8740 Chromoly Steel 12 point bolts. This is up to 5X stronger than stock! All ARP main bolts feature a reduced wrenching head as well as a large underhead radius.

Rolling the threads after heat-treating gives them about 2000% better fatigue strength than most main bolts threaded prior to heat-treating. This provides the utmost in reliability!

Kits come complete with hardened parallel-ground washers. Sold as a set of 16.

ARP 234-5201 SBC Main Bolt Kit Fits:

• 4-Bolt Main, Large Journal Engines

ARP designs their Main Bolts to be far superior to any other main bolts available for use in competition engines. They meet the exacting standards and demands of professional engine builders!

The popular High Performance Series is rated at 180,000 psi, and is a premium replacement for OEM fasteners.

Pro Series main bolts are application-specific, rated at 190,000 psi, and designed for use in competition engines. Hardened parallel-ground washers are included with each kit.