Thermostat Housing Bolt Kit - 12pt. LS1/LS2

The Thermostat Housing Bolt Kit - 12pt. LS1/LS2 is a crucial fastener upgrade designed for LS engine builders and performance enthusiasts who are working on high-heat applications. This kit replaces the often inadequate OEM thermostat housing bolts, providing enhanced clamping force and reliability for modified engines and custom cooling systems.

Constructed from premium-grade alloy steel, these bolts feature a 12-point head design that allows for better load distribution across the housing and intake manifold. This design minimizes the risk of bolt stretch and housing distortion, while also ensuring superior tool engagement and precise torque control during installation, which is essential when working near sensitive engine components.

Ideal for LS1 and LS2 engine swaps, turbo conversions, and supercharger installations, this bolt kit is particularly beneficial for modified cooling systems that operate under higher pressures and tighter tolerances than stock configurations. Whether you're rebuilding a 6.0L truck engine or preparing an LS7 for competition, this upgrade ensures long-term reliability and performance.