Head Gasket - GM LS1/LS6

The FEL-PRO Head Gasket for GM LS1/LS6 engines is a critical component for anyone rebuilding, servicing, or modifying one of General Motors' most legendary V8 powerplants. Whether you're addressing a blown gasket on a stock engine or preparing a high-performance LS platform for forced induction, this multi-layer steel cylinder head gasket seals the combustion chamber under extreme pressure and temperature. LS engines are renowned for reliability and modification potential, making OEM-equivalent gasket replacement essential for maintaining that performance foundation.

This head gasket features a multi-layer steel construction that withstands the demands of both stock and modified LS applications, with a 3.945-inch bore diameter engineered for precise LS cylinder head fitment. The 0.048-inch compression thickness is designed to maintain proper combustion chamber volume and ring gap clearances, critical for achieving target compression ratios and avoiding piston-to-valve interference on ported or stroker builds. FEL-PRO's engineering ensures consistent sealing across the gasket face, preventing coolant and oil cross-contamination between cylinders while handling boost pressures common in turbocharged or supercharged LS installations.

Mechanics and enthusiasts restoring LS1 and LS6 engines—whether from third-generation Camaros, Corvettes, or engine-swap projects—rely on this gasket during complete top-end rebuilds or head gasket replacement procedures. Installation requires standard head gasket procedures: proper cleaning of cylinder head and block deck surfaces, correct torque sequence, and attention to bolt stretch specifications for LS applications. This single gasket is sold as one unit; most LS builds require one gasket per engine.