4.130 MLS Head Gasket .051 - GM LS1

The 4.130 MLS Head Gasket .051 - GM LS1 from Cometic Gaskets is a precision sealing solution designed for LS1 engine builders and performance enthusiasts who prioritize reliability under high combustion pressures. This multi-layer steel (MLS) gasket is specifically engineered for both naturally aspirated and forced-induction LS1 applications, providing a critical barrier between the cylinder head and engine block.

Constructed from precisely bonded steel layers with elastomer facing, this gasket is designed to resist combustion blow-by and coolant weepage across a wide range of cylinder pressures. The .051-inch thickness accommodates the specific bore and deck height tolerances of the LS1 platform, ensuring consistent clamp load distribution across all combustion chambers and coolant passages. The 4.130-inch bore diameter aligns with OEM LS1 specifications, enhancing its compatibility with various engine setups.

This gasket is ideal for LS1 engine rebuilds and performance upgrades, particularly in applications where enhanced sealing integrity is required. While it offers advantages over traditional composite gaskets, users should still follow proper installation procedures to ensure optimal performance. Whether you're upgrading for higher compression or aiming for peak power output, this gasket provides the durability needed for both stock and modified applications.