ARP Main Stud Kits

Universal Fitment

Part #: 230-5402

Overview

The ARP Main Stud Kit is a high-strength fastening solution designed for engine builders seeking enhanced durability and reliability. Crafted from premium 8740 chromoly steel and heat-treated to achieve a tensile strength of 190,000 psi, these studs are engineered to withstand the demanding conditions of high-performance engines. Ideal for automotive enthusiasts and professional rebuilders, this kit helps eliminate main cap walk and fretting, ensuring consistent engine integrity under extreme loads. The precision J-form threads are rolled after heat treatment, providing significantly stronger threads compared to standard fasteners. Complete with hardened, parallel-ground washers and high-quality nuts, this kit offers a comprehensive solution for securing your engine's main caps with confidence and precision.

Key Features

This ARP Main Stud Kit is designed to deliver superior strength and reliability for your engine build. Key features include:

• Made from 8740 chromoly steel for exceptional toughness and durability
• Heat-treated in-house to a 190,000 psi tensile-strength rating for maximum performance
• Precision rolled J-form threads for enhanced thread strength and longevity
• Complete with hardened, parallel-ground washers for consistent load distribution
• High-quality nuts designed to withstand high torque applications
• Engineered to prevent main cap walk and fretting, supporting engine stability
• Suitable for various GM engine applications, ensuring versatile compatibility

Construction & Design

The studs are machined from high-grade chromoly steel, known for its excellent strength-to-weight ratio and resistance to fatigue. The heat-treatment process enhances the material's tensile properties, making these studs capable of handling high-stress environments. The rolled threads are precisely formed to maximize thread engagement and strength, while the parallel-ground washers ensure even load distribution across the main caps, reducing the risk of warping or damage during assembly.

Installation & Fitment

Installation requires proper torque specifications and should be performed following engine assembly best practices. It is recommended to verify fitment against your specific engine model and consult ARP's technical resources for optimal installation procedures.

What’s Included

The kit includes all necessary studs, hardened washers, and nuts required for a complete main cap fastening upgrade, providing everything needed for a secure and reliable installation.

Ideal For

This product is ideal for engine builders, performance enthusiasts, and professional rebuilders looking to enhance engine strength and longevity in high-performance or heavily modified GM engines.