Ford Main Stud Kit

The ARP Ford Main Stud Kit (Model 256-5701) is designed for serious engine builders and performance enthusiasts who require enhanced reliability under high cylinder pressures. This kit is ideal for those building stroker, turbocharged, or nitrous-assisted Ford engines, as it replaces factory bolts with main studs that provide superior clamping force and fatigue resistance.

Manufactured from premium chromoly steel, ARP studs undergo controlled heat-treating to achieve tensile strength that exceeds OEM specifications. The design features a diameter and thread geometry optimized for Ford engine blocks, ensuring proper clamp load distribution across bearing caps while minimizing distortion of critical bearing surfaces. Unlike bolts, studs allow for precise torque control and more even clamping pressure, which is crucial for high-performance applications.

Engine builders can benefit from the ARP Ford Main Stud Kit when aiming for high-performance builds, as it addresses a critical weak point in stock engine architecture. The kit includes all necessary fasteners for a complete main stud conversion, along with ARP lubricant for accurate torque values during installation. This makes it an essential upgrade for any Ford small-block or modular engine project.