ARP Main Stud Kits | Multiple Fitments (203-5409)

The ARP Main Stud Kit is a high-performance engine fastener solution designed to secure main caps and prevent cap walk or fretting during operation. Constructed from 8740 chromoly steel and heat-treated in-house to achieve a 190,000 psi tensile-strength rating, these studs provide exceptional strength and durability. The precision J-form threads are rolled after heat treatment, resulting in stronger, more reliable threads compared to standard fasteners. The kit includes hardened, parallel-ground washers and high-quality nuts, ensuring a secure and consistent fit. This product enhances engine integrity by maintaining proper cap alignment under high-stress conditions, making it ideal for performance builds and demanding applications.

Designed for multiple fitments, these ARP main stud kits are suitable for various engine configurations requiring robust main cap fastening. They are intended for use in high-performance street, track, or racing engines where maintaining proper main cap positioning is critical. Installation involves replacing stock bolts with these bolt-in studs, providing a direct upgrade for engine reliability. The kit typically includes all necessary components for installation, offering a comprehensive solution for engine builders seeking increased strength and longevity. Compatibility should be verified with specific vehicle and engine specifications to ensure proper fitment.