ARP Main Stud Kits | Multiple Chevrolet Fitments (230-5401)

The ARP Main Stud Kits are high-performance fasteners designed to secure engine main caps and prevent cap walk or fretting during operation. Crafted from 8740 chromoly steel and heat-treated in-house to achieve a tensile strength of 190,000 psi, these studs provide exceptional durability and strength under demanding conditions. The precision J-form threads are rolled after heat treatment, resulting in stronger, more reliable threads compared to standard fasteners. The kits include hardened, parallel-ground washers and high-quality nuts, ensuring a secure and consistent fit. These main stud kits are engineered to enhance engine integrity, especially in high-stress applications, offering peace of mind during aggressive driving or racing.

Designed for multiple Chevrolet applications, these ARP main stud kits are suitable for a range of engine configurations. They are intended as direct replacements for stock fasteners, providing a robust upgrade for performance builds. The installation involves replacing the factory main cap bolts with these studs, which help maintain proper cap alignment under high loads. Compatible with engines requiring ARP part number 230-5401, they are ideal for street, strip, or track use where engine strength and reliability are critical. The kit ensures a secure, long-lasting connection to support high-performance engine operation.