Cometic GM LS Gen-3/4 Small Block V8 .056in MLS Cylinder Head Gasket - 3.970in Bore

Cometic Gasket is well-known for making solid sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s built for GM LS Gen-3 and Gen-4 small block V8 engines, specifically designed to handle the demands of higher output applications. If you're rebuilding or refreshing the top end of your LS engine, a reliable head gasket is crucial for keeping everything sealed up tight and running smoothly.

What makes these gaskets stand out is their construction. They're made from multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping them resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This combination is ideal for sealing aluminum heads to either aluminum or cast iron blocks, as it can manage the different expansion rates and shearing forces between those materials. The center layer is stainless steel and can be varied to achieve different compressed thicknesses, like the .056 inch on this particular gasket, which has a compressed operating thickness of .036 inches. These MLS gaskets are designed to provide maximum sealing performance and don't require any additional sealants.

This gasket fits a wide range of GM vehicles, including popular models like the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe. It's a well-built component that helps ensure a strong seal for your LS engine.