Cometic GM LS1 SB 4.060 inch Bore .045 inch MLS Head Gasket

If you're rebuilding the top end of a GM LS Gen-3 or Gen-4 small block V8, getting the right head gasket is crucial for a solid seal. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of high-output engines, ensuring a reliable seal between your cylinder head and block without needing extra sealants.

Cometic constructs these gaskets with multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle tough sealing environments and various surface finishes. This design is effective whether you're mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks, as it can manage the shearing forces that can occur between different metals. The center layer is uncoated stainless steel, and the compressed operating thickness for this specific gasket is 0.045 inches, with a bore size of 4.060 inches, making it suitable for a wide range of GM LS applications.

This gasket is a well-built option for many GM LS engines, including those found in vehicles like the Chevrolet Corvette, Cadillac CTS, and Chevrolet Silverado 1500. Its robust construction aims to provide a long-lasting seal for your engine build.