GM LSX Gen-4 V8 .052in MLX Head Gasket

The Cometic Gaskets GM LSX Gen-4 V8 .052in MLX Head Gasket is designed for serious engine builders and performance enthusiasts working on high-horsepower LSX platform builds. This gasket is essential for ensuring a reliable seal between the cylinder head and block, crucial for maintaining combustion pressure, coolant flow, and oil passage integrity under extreme conditions.

Constructed from multi-layer steel (MLX), this gasket is engineered to withstand the thermal cycling and pressure spikes typical of modern LSX engines. The .052-inch compressed thickness is specifically designed to accommodate various cylinder head deck heights and combustion chamber volumes, directly influencing compression ratio and quench distance, which are vital for tuning consistency.

Engine builders and mechanics preparing LSX platforms for street performance, track duty, or forced induction applications will find this gasket indispensable for achieving repeatable sealing and reliability. It is compatible with Gen-4 LSX heads, including LS3, LSA, and L99 variants, ensuring that both OEM and aftermarket combinations meet exacting tolerances.