Cometic GM LS1 SB 106.43mm .056in MLS-5 Head Gasket

This Cometic MLS-5 head gasket is built with a .056 inch thickness and a 4.190 inch bore, specifically designed for GM LS Gen-3 and Gen-4 small block V8 engines. The multi-layer steel (MLS) construction offers a strong foundation, while the embossed outer layers are coated with Viton, a material known for its resistance to heat and oil. This coating helps create a tighter seal, especially around the combustion chamber, which is crucial for maintaining proper compression and preventing leaks in engines with open deck blocks.

The HP shim technology integrated into this gasket is designed to increase the clamping force around the combustion chamber. This improved sealability is particularly beneficial for applications where higher cylinder pressures are expected. Whether you're rebuilding a classic LS1 or working on a more modern LS variant, this gasket aims to provide reliable sealing performance. It fits a wide range of vehicles, including models like the Chevrolet Corvette, Cadillac CTS, and Chevrolet Silverado.