ARP Main Stud Kits

Universal Fitment

Part #: 152-5402

Overview

The ARP Main Stud Kit is a high-performance engine component designed to enhance the durability and reliability of your engine's main cap assembly. Crafted from premium 8740 chromoly steel and heat-treated to achieve a tensile strength of 190,000 psi, these studs are engineered for serious performance applications. Ideal for engine builders and enthusiasts seeking to prevent main cap walk and thread fretting, this kit provides a secure, stable foundation for your engine's critical components. The precision J-form threads are rolled after heat treatment, resulting in stronger, more reliable threads compared to standard fasteners. Complete with hardened, parallel-ground washers and high-quality nuts, the ARP Main Stud Kit ensures a professional-grade installation that supports long-term engine integrity and performance.

Key Features

This kit features a robust design focused on strength and reliability, making it suitable for high-stress engine environments. The main features include:

• Made from 8740 chromoly steel for exceptional strength and durability
• Heat-treated in-house to 190,000 psi tensile strength for maximum performance
• Precision rolled J-form threads for enhanced thread strength and integrity
• Complete with hardened parallel-ground washers for even load distribution
• High-quality nuts designed for secure fastening and long-term reliability
• Engineered to prevent main cap walk and thread fretting under demanding conditions
• Suitable for a variety of Ford engine applications, ensuring versatile fitment

Construction & Design

The studs are manufactured from high-grade 8740 chromoly steel, known for its excellent strength-to-weight ratio and toughness. The heat-treatment process enhances the tensile strength, making these studs capable of withstanding extreme engine stresses. The rolled J-form threads are precisely machined and heat-treated to provide superior thread engagement and resistance to stripping, ensuring a secure fit during high-performance operation.

Installation & Fitment

Installation requires proper torque specifications and should be performed by experienced technicians familiar with engine assembly. The kit is designed to fit multiple Ford engine models, but fitment should be verified against your specific application and part number.

What’s Included

The ARP Main Stud Kit includes all necessary studs, hardened washers, and nuts required for a complete installation, providing everything needed to upgrade your engine's main cap fasteners for enhanced strength and reliability.

Ideal For

This product is ideal for engine builders, performance enthusiasts, and anyone undertaking high-stress engine builds or rebuilds where main cap stability and thread integrity are critical for long-term engine performance and durability.