Cometic GM LS1 SB 4.190in Bore .098in MLS Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for GM LS Gen-3 and Gen-4 small block V8 engines. It features a 4.190-inch bore and a .098-inch thickness, making it suitable for a wide range of popular GM vehicles like the Chevrolet Corvette, Camaro, and Silverado trucks. MLS head gaskets are known for their durability and ability to handle higher cylinder pressures compared to traditional composite gaskets.

The key feature here is Cometic's HP shim technology, which is integrated into the gasket's design. This technology increases the clamping force around the combustion chamber, creating a more robust seal, especially important for engines with open deck blocks. Both sides of the gasket are coated with Viton, a high-performance fluoroelastomer that offers excellent resistance to heat and oil, further enhancing its sealing capabilities and longevity in demanding applications.