Cometic GM LS Gen-3/4 Small Block V8 .045in MLS Cylinder Head Gasket-Bore 4.125in

Starting with a .045 inch compressed thickness, this Cometic Multi-Layer Steel (MLS) head gasket is built for the demands of GM LS Gen-3 and Gen-4 small block V8 engines. These gaskets are constructed with multiple layers of stainless steel, giving them increased strength and the ability to rebound, which helps them resist corrosion and maintain a solid seal. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit and works well with various sealing environments and surface finishes.

This design makes the gasket suitable for use with both aluminum heads on aluminum blocks and aluminum heads on cast iron blocks, as it can handle the shearing forces that can occur between different metals. The center layer is uncoated stainless steel and can be varied to achieve different thicknesses, like the .045 inch specification on this particular gasket. Because they are MLS, these gaskets don't require any additional sealants, simplifying installation for a wide range of vehicles including the Chevrolet Camaro, Corvette, and Pontiac GTO.