ARP Main Stud Kits

Universal Fitment

Part #: 247-5405

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 a tensile strength of 190,000 psi, these studs provide a robust alternative to traditional main cap bolts. Ideal for performance and racing applications, this kit helps prevent main cap walk and fretting, ensuring consistent engine integrity under demanding conditions. Whether you're building a high-performance street engine or a race-ready powerplant, these studs offer peace of mind through superior strength and precision engineering.

Key Features

Designed to support high-stress engine environments, the ARP Main Stud Kit offers several key benefits:

• Made from heat-treated 8740 chromoly steel for exceptional strength and durability
• Precision J-form threads rolled after heat treatment for stronger, more reliable threads
• Complete with hardened, parallel-ground washers and high-quality nuts for secure fastening
• Engineered to eliminate main cap walk and fretting, maintaining proper alignment under load
• Suitable for a variety of Dodge engine applications, ensuring versatile compatibility
• Manufactured and assembled in-house for strict quality control

Construction & Design

The studs are machined from 8740 chromoly steel, a material renowned for its toughness and resistance to fatigue. The J-form threads are precisely rolled after heat treatment, enhancing thread strength and reducing the risk of stripping or failure. The included washers are hardened and ground to ensure a perfect fit, providing even load distribution and secure clamping force. This thoughtful construction supports the engine's structural integrity during high-performance operation.

Installation & Fitment

Installation requires proper torque specifications and should be performed by experienced technicians familiar with engine assembly. Compatibility varies depending on specific Dodge engine models; verify fitment against your vehicle's engine specifications and the part number provided.

What’s Included

The kit includes all necessary studs, hardened washers, and nuts to complete the main cap fastening upgrade, ensuring a straightforward installation process and reliable performance.