GM LS Head Stud Kit 12pt.

The GM LS Head Stud Kit 12pt is designed for high-performance GM LS-series engine builds, providing builders with the reliability and strength needed for demanding applications. This kit replaces factory bolts with head studs, ensuring superior clamping force consistency and resistance to thread galling, which are critical for engines subjected to high boost, nitrous, or high compression ratios.

Constructed from chromoly steel with a black oxide finish, this head stud kit offers enhanced tensile strength compared to standard steel, allowing for greater clamping loads while maintaining safety margins. The 12-point nut design provides more engagement points than traditional 6-point hardware, which helps distribute load evenly and reduces the risk of nut rotation under vibration. The black oxide finish also resists corrosion, preserving torque values across engine cycles.

Engine builders working on LS engine assemblies, whether for street performance, track duty, or engine refresh, rely on ARP studs to eliminate fastener stretch and ensure repeatable torque values. This kit is engineered for direct fitment on GM LS cylinder heads without modification, making it an essential component for anyone looking to achieve durability and consistent results in their builds.