LS1-LS6 Performance Intake Gasket .045in

The LS1-LS6 Performance Intake Gasket .045in from FEL-PRO is a precision-engineered sealing component designed specifically for Gen III and Gen IV LS platform engines that demand reliability and performance. This gasket is ideal for both stock LS1 engines and heavily modified LS6 setups with aftermarket intake manifolds, preventing vacuum leaks and coolant bypass—common issues that can lead to rough idle and poor fuel economy.

FEL-PRO's .045-inch thickness strikes a balance between gasket crush resistance and effective sealing surface area, ensuring proper clamp load distribution across the LS1-LS6 head and manifold deck. The gasket's material composition is designed to resist degradation from fuel, coolant, and oil while maintaining elasticity through repeated thermal cycles, which is crucial for performance in varying temperature conditions.

Serious enthusiasts and professional tuners will benefit from this gasket during intake manifold replacements, as it effectively bridges the critical seal between the intake manifold and cylinder head. While it is designed to fit most factory and aftermarket intake manifold designs, users should verify compatibility with specific aftermarket options to ensure optimal performance.