Cometic Chevy Small Block 4.165 inch Bore .066 inch MLS-5 Head Gasket (w/All Steam Holes)

If you're rebuilding the top end of your Chevrolet Gen-1 Small Block V8, a solid head gasket is crucial for sealing combustion pressure and coolant. 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.

This gasket features multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well with both aluminum and cast iron components. The compressed thickness is 0.066 inches, and it includes all necessary steam holes to help manage heat. Because it's an MLS design, it doesn't require any additional sealants, making installation more straightforward.

This gasket fits a wide range of Chevrolet and GMC vehicles from the early 1980s, including models like the Chevrolet C10 and GMC C1500. It's designed for a round bore with an 18/23-degree head angle.