Cometic GM LS1 SB 4.190 inch Bore .060 inch MLS-5 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 compressed thickness of 0.060 inches. These gaskets are built to handle the demands of high-output engines and are suitable for applications using aluminum heads with either aluminum or cast iron blocks, as they can manage the shearing forces between different metals.

The construction uses 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 temperatures up to 482 degrees Fahrenheit, ensuring a solid seal even in harsh conditions. The center layer is uncoated stainless steel and can be varied to achieve different thicknesses, like the 0.060 inch specification on this particular gasket. Because they are MLS gaskets, they do not require any additional sealants.

This gasket fits a wide range of GM vehicles, including models like the Chevrolet Camaro, Corvette, and Silverado trucks. It's a well-built option for rebuilding or upgrading the top end of your LS engine.