ARP Main Stud Kits

Universal Fitment

Part #: 154-5612

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 a tensile strength of 190,000 psi, these studs provide exceptional strength and stability. The precision rolled J-form threads, after heat treatment, create stronger, more reliable 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

Designed for maximum strength and durability, the ARP Main Stud Kit features:

• Made from 8740 chromoly steel for superior strength and toughness
• Heat-treated in-house to achieve a 190,000 psi tensile-strength rating
• Precision J-form threads that are rolled after heat treatment for enhanced thread strength
• Complete with hardened, parallel-ground washers for consistent load distribution
• High-quality nuts designed for secure, reliable fastening
• Engineered to eliminate main cap walk and fretting during high-stress operation
• Suitable for a variety of Ford engine applications, ensuring versatile fitment

Construction & Design

The studs are machined from high-grade chromoly steel, known for its excellent strength-to-weight ratio and fatigue resistance. The heat-treatment process enhances the material's tensile properties, making these studs capable of withstanding extreme engine stresses. The rolled J-form threads are designed for optimal engagement and load transfer, reducing the risk of thread stripping or failure. The included washers are hardened and ground to precise specifications, ensuring a flat, even surface for load distribution and minimizing wear over time.

Installation & Fitment

Installation requires proper torque specifications and should be performed following engine assembly best practices. Fitment is designed to be compatible with a range of Ford engines; however, verification against your specific application and part number is recommended to ensure proper fitment.

What’s Included

The kit includes all necessary studs, hardened washers, and nuts needed for a complete installation, providing everything required to upgrade your engine's main cap fasteners with confidence.

Ideal For

Perfect for engine builders, performance tuners, and enthusiasts seeking to reinforce their engine's main cap assembly for high-performance applications or rebuilds.