Cometic Chevy Gen1 Small Block V8 .095in MLS Cylinder Head Gasket - 4.200in Bore - 18/23 Degree Head

The outer layers of this Cometic Multi-Layer Steel (MLS) head gasket are coated with Viton, a heat-resistant elastomer that can handle temperatures up to 482 degrees Fahrenheit. This is important because head gaskets are constantly exposed to high heat and pressure, and Viton's properties help ensure a reliable seal. This gasket is designed for Chevrolet Gen 1 Small Block V8 engines and features a 4.200-inch bore with a compressed operating thickness of 0.036 inches.

MLS head gaskets are well-built for high-output engines and don't require any additional sealants, making installation more straightforward. The multiple stainless steel layers provide increased strength and resist corrosion, while also allowing the gasket to rebound and maintain sealing pressure. This design is effective for sealing between aluminum heads and either aluminum or cast iron blocks, handling the different expansion rates of these materials without issue. The center layer is stainless steel and can be varied to achieve different thicknesses, like the 0.095-inch thickness of this particular gasket.

This gasket is a solid option for a wide range of vehicles, including many Chevrolet and GMC trucks and cars from the 1980s and early 1990s, as well as some Avanti and Excalibur models. It's designed with round bores and includes steam holes to help manage heat effectively.