ARP Main Stud Kits

Universal Fitment

Part #: 156-5403

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 provide a robust alternative to traditional main cap bolts. Ideal for performance enthusiasts and professional rebuilds, this kit helps prevent main cap walk and fretting, ensuring the integrity of your engine’s main bearing support under demanding conditions. The precision J-form threads are rolled after heat treatment, resulting in stronger, more durable threads that outperform standard fasteners. Complete with hardened, parallel-ground washers and high-quality nuts, this kit offers a comprehensive upgrade to your engine’s main cap fastening system, supporting long-term performance and peace of mind.

Key Features

This ARP Main Stud Kit combines advanced materials and precision engineering to deliver a reliable fastening solution. Key features include:

• Made from 8740 chromoly steel for exceptional strength and durability
• Heat-treated in-house to a 190,000 psi tensile-strength rating
• Rolled J-form threads for increased thread strength and fatigue resistance
• Complete with hardened, parallel-ground washers for consistent load distribution
• High-quality nuts designed for secure, long-lasting fastening
• Engineered to eliminate main cap walk and fretting during high-performance use
• Suitable for a variety of Ford engine applications, ensuring versatile compatibility