ARP Main Bolt Kits

Multiple Chevrolet Fitments

Part #: 134-5202

Overview

The ARP Main Bolt Kit is a high-performance fastener set designed for use in demanding engine applications. Crafted specifically for Chevrolet engines, these bolts are engineered to meet the rigorous standards of professional engine builders and competitive racing environments. Made from forged 8740 chromoly steel, they offer exceptional strength and durability, ensuring reliable performance under extreme conditions. Whether you're building a race engine or upgrading a high-performance street setup, these main bolts help support engine integrity, response, and longevity, making them an essential component for serious automotive enthusiasts and professional mechanics alike.

Key Features

Designed with precision and durability in mind, the ARP Main Bolt Kit features:

• Forged 8740 chromoly steel construction for maximum strength
• Application-specific design for multiple Chevrolet models
• Rated at 190,000 psi for superior tensile strength
• Rolled threads after heat treatment for enhanced fatigue resistance
• Reduced wrenching head for easier installation in tight spaces
• Large underhead radius to distribute load evenly
• Engineered for competition and high-performance applications

Construction & Design

These bolts are forged from high-grade 8740 chromoly steel, a material renowned for its toughness and resistance to fatigue. The rolled threads are heat-treated to improve fatigue strength by approximately 2,000 percent compared to standard fasteners, ensuring long-lasting reliability even under extreme engine stresses. The design incorporates a reduced wrenching head for easier installation in confined engine bays, while the large underhead radius helps distribute stress evenly across the bolt, reducing the risk of failure.

Installation & Fitment

Proper installation requires torque specifications recommended by ARP and should be performed by qualified technicians familiar with high-performance engine assembly. Fitment details should be verified against your specific Chevrolet engine model and application to ensure compatibility.

What’s Included

This kit includes all necessary main bolts for your Chevrolet engine build, designed to replace factory fasteners with high-strength ARP components that support maximum engine performance and reliability.

Ideal For

Ideal for professional engine builders, racing enthusiasts, and anyone seeking to upgrade their Chevrolet engine with durable, high-performance main bolts that meet the demands of competition and high-stress driving conditions.