Cometic GM LS1 SB 4.060 inch Bore .084 inch MLS Head Gasket

If you're rebuilding the top end of your GM LS engine, getting the head gaskets right is crucial for sealing combustion pressure. This Cometic Multi-Layer Steel (MLS) head gasket is built specifically for LS1, LS2, LS3, and LS6 Gen-3 and Gen-4 small block V8 engines, featuring a 4.060-inch bore and a compressed thickness of .084 inches. It’s designed to handle the demands of high-output applications, ensuring a solid seal between your cylinder head and block.

Cometic uses multiple layers of stainless steel for increased strength and resistance to corrosion, which is especially important when mating aluminum heads to cast iron blocks. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well in tough sealing environments. This construction means the gasket seals effectively without needing any additional sealants, making installation more straightforward. The center shim layer can be varied to achieve different thicknesses, and this particular gasket is set at .084 inches.

This gasket fits a wide range of GM vehicles, including popular models like the Chevrolet Corvette, Camaro, and Silverado trucks. It’s a well-built option for anyone looking to ensure a reliable seal in their LS engine build.