Cometic Ford Boss 302 .120in MLS Cylinder Head Gasket - 4.155in Bore

When you're rebuilding the top end of your 1969-1971 DeTomaso Mangusta, or a similar classic Ford Mustang or Mercury Cougar from those years, a solid head gasket is crucial. 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's MLS design uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This construction is well-suited for mating aluminum heads to aluminum or cast iron blocks, as it can manage the different expansion rates and shearing forces between these materials. The center layer is stainless steel, and its thickness is varied to achieve the specific compressed operating thickness of 0.036 inches, with an initial thickness of 0.120 inches and a 4.155-inch bore diameter, making it a precise fit for applications like the Ford Boss 302 engine.