ARP Main Stud Kits

Part #: 202-5406

Overview

The ARP Main Stud Kit is a high-quality engine component designed to enhance the durability and reliability of your engine's main cap assembly. Crafted for performance enthusiasts and professional builders, this kit helps prevent main cap walk and fretting, ensuring consistent engine integrity under demanding conditions. Made from premium 8740 chromoly steel and heat-treated to achieve a tensile strength of 190,000 psi, these studs provide a significant upgrade over stock fasteners. The precision J-form threads are rolled after heat treatment, resulting in stronger, more durable threads that resist stripping and fatigue. 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 engineered with durability and performance in mind, featuring:

• Made from 8740 chromoly steel for exceptional strength and toughness
• Heat-treated in-house to a 190,000 psi tensile-strength rating for maximum durability
• Precision rolled J-form threads for stronger, more reliable fastening
• Includes hardened, parallel-ground washers to ensure proper load distribution
• High-quality nuts designed for secure, long-lasting fastening
• Designed to eliminate main cap walk and prevent thread fretting during high-stress engine operation

Construction & Design

The studs are manufactured from 8740 chromoly steel, a material renowned for its strength and resistance to fatigue. The heat-treatment process enhances the tensile strength, ensuring the studs can withstand the rigors of high-performance applications. The rolled J-form threads provide a superior grip and thread integrity, reducing the risk of stripping or loosening over time. The included washers are hardened and ground for precise fitment, contributing to even load distribution and increased longevity of the assembly.

Installation & Fitment

Installation of these main studs requires proper torque specifications and attention to detail to ensure optimal performance. Fitment should be verified against your specific engine model and the part number provided. These studs are designed as a direct replacement for various Nissan engines, but compatibility should be confirmed prior to installation.

What’s Included

The kit includes all necessary studs, hardened washers, and nuts required for a complete upgrade of your engine's main cap fasteners.

Ideal For

This product is ideal for engine builders, performance tuners, and enthusiasts seeking to reinforce their engine's main cap assembly for high-stress applications, including racing, high-performance street builds, and rebuilds requiring enhanced fastener strength and reliability.