ARP Main Stud Kits | Multiple Triumph Fitments (206-5404)

The ARP Main Stud Kit for multiple Triumph models is a high-performance engine fastener solution designed to secure 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 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 and reducing the risk of thread damage, making it ideal for high-performance or rebuild applications.

Designed for various Triumph models, these main studs are suitable for engines requiring a robust fastening solution. They are intended for use in performance builds, racing, or high-stress street applications where engine reliability is critical. The studs are a direct replacement for OEM fasteners, offering an upgrade in strength and longevity. Installation involves replacing the stock main cap bolts with these high-tensile studs, washers, and nuts, providing a secure, bolt-on upgrade. Compatibility covers a range of Triumph engines, and the kit is suitable for both street and track use, ensuring optimal engine stability under increased loads.