Cometic Ford 351 Cleveland 4.100 inch Bore .056 inch MLS-5 Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket, specifically designed for Ford 351 Cleveland engines with a 4.100 inch bore. It has a compressed thickness of .056 inches. MLS head gaskets are a popular choice for high-output engines because they offer superior sealing performance without needing any additional sealants, making installation more straightforward. They are well-suited for applications using aluminum heads with either aluminum or cast iron blocks, as the multiple steel layers can handle the stresses between dissimilar metals.

Cometic builds these gaskets with 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 degrees Fahrenheit. This makes them ideal for harsh sealing environments and various surface finishes. The center layer is uncoated stainless steel and can be varied in thickness to meet different engine build requirements.