4.175 MLS Head Gasket - .053 SBC LS1 LH

The FEL-PRO 4.175 MLS Head Gasket - .053 SBC LS1 LH is a precision-engineered cylinder head gasket designed for small-block Chevrolet LS-series engine applications, particularly driver-side installations. This multi-layer steel gasket serves as the critical seal between the cylinder head and engine block, preventing coolant and combustion leakage while maintaining compression integrity. Whether you're rebuilding a classic LS1 engine, restoring a performance vehicle, or maintaining original equipment, this OEM-specification gasket ensures reliable sealing under demanding conditions.

Featuring a multi-layer steel (MLS) construction, this gasket delivers superior durability and reusability compared to traditional composite gaskets. The 4.175-inch bore diameter matches GM LS-series specifications precisely, while the 0.053-inch compression thickness is calibrated to maintain proper combustion chamber volume and compression ratio for optimal engine performance. FEL-PRO's advanced gasket design utilizes stainless steel facings and elastomer coatings to resist thermal stress, chemical degradation, and repeated engine cycling—critical factors in preventing head gasket failure.

This left-hand (driver-side) gasket is essential for anyone performing cylinder head replacement, gasket service, or engine rebuild on LS1 and compatible LS-series blocks. Professional technicians and engine builders rely on FEL-PRO's precision tolerances and consistent quality to eliminate comebacks and ensure first-time installation success. Compatible with standard LS1 engine configurations, this gasket integrates seamlessly with factory fastening patterns and requires no modification to existing engine architecture.