Cometic Chevrolet Gen-1 Small Block V8 .045in MLS Cylinder Head Gasket - 4.160in Bore

Starting with a compressed operating thickness of 0.045 inches, this Cometic Multi-Layer Steel (MLS) head gasket is built for serious sealing performance in high-output Chevrolet Gen-1 Small Block V8 engines. It’s designed to handle the demands of both aluminum and cast iron blocks, and can even manage the shearing forces between aluminum heads and cast iron blocks. This makes it a solid choice for a wide range of vehicles from the 1980s, including models like the Chevrolet C10, Camaro, and GMC C1500.

The strength of this gasket comes from its multiple stainless steel layers, which also help it rebound and resist corrosion. The outer layers are specially treated with Viton, a heat-resistant rubber coating that can handle temperatures up to 482°F (250°C) and works well in tough sealing environments. The center layer is uncoated stainless steel, allowing for variations in thickness to meet different build needs. This gasket is also noted for having undersized water ports, which gives you flexibility for customization when working with aftermarket heads.

Because these MLS gaskets are designed for maximum sealing, they typically don't require any additional sealants, simplifying installation. They are a popular choice when rebuilding or upgrading the top end of your engine.