4.150 MLX Head Gasket .052 GM LSX Race LH

The 4.150 MLX Head Gasket .052 GM LSX Race Left-Hand is a precision multi-layer steel cylinder head gasket engineered for high-performance GM LS-series engine builds, particularly suited to 6.2L applications and racing configurations. With a 4.150-inch bore diameter and 0.052-inch compression thickness, this gasket delivers the critical sealing performance required in forced-induction and naturally aspirated race engines where combustion chamber integrity directly affects horsepower output and engine longevity.

The multi-layer steel construction provides superior gasket durability compared to conventional composite designs, withstanding the extreme cylinder pressures generated in turbocharged, supercharged, and high-rev naturally aspirated LS builds. The specific .052-inch thickness is critical for achieving the target compression ratio and chamber volume in modified LS-series heads, particularly when combined with custom piston and cylinder head combinations. This left-hand configuration ensures proper fitment for driver-side cylinder head installation on V8 applications where port orientation and firing order require directional gasket placement.

This gasket is specified for serious LS engine builders and race teams developing high-displacement or boosted powerplants that demand consistent sealing under sustained peak loads. Whether building a street-performance 6.2L LS3, a turbocharged 408-cubic-inch stroker, or a competition engine, the correct head gasket specification is non-negotiable for preventing coolant migration, oil cross-contamination, and combustion gas bypass that compromise reliability and performance gains.