S/S Valley Cover Bolt Kit - 12pt. LS1/LS2

The S/S Valley Cover Bolt Kit – 12pt. LS1/LS2 by ARP is designed specifically for LS engine builders and enthusiasts who prioritize reliability in high-performance applications. Valley cover fasteners are critical stress points in LS architecture, where thermal cycling and engine bay vibration can lead to oil leaks if inferior hardware is used. This kit is essential for those looking to enhance their engine's performance and durability.

Constructed from premium-grade stainless steel, this bolt kit replaces factory fasteners to withstand the demands of boosted and heavily modified LS powerplants. The 12-point head design offers better load distribution compared to traditional 6-point fasteners, minimizing the risk of stripping and galling during installation. Additionally, the stainless steel material provides excellent corrosion resistance, ensuring longevity in harsh underhood environments.

Ideal for LS1 and LS2 engine swaps, restorations, and performance builds, these valley cover bolts deliver the durability and reliability needed for both street and track applications. Whether you're building a crate engine, upgrading an existing swap, or refreshing a high-mileage block, this kit ensures that you have the best fasteners for your project.