Cometic Chevy Small Block 4.125 inch Bore .040 inch MLS Head Gasket (w/All Steam Holes)

Cometic Gasket is well-known for making solid sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s built for Chevy Gen-1 Small Block V8 engines and is designed to handle the demands of higher output applications. This gasket features a compressed operating thickness of 0.040 inches and is made for a 4.125-inch bore, making it a good choice when you're rebuilding or refreshing the top end of your engine.

What makes these MLS gaskets stand out is their construction. They're made from multiple layers of stainless steel, which gives them strength and the ability to rebound, resisting corrosion and the shearing forces that can happen between aluminum heads and cast iron blocks. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a good seal even in tough conditions. The center layer is uncoated stainless steel, and its thickness can be varied to meet different sealing needs. These gaskets are designed to provide maximum sealing performance without needing any additional sealants.

This gasket fits a wide range of vehicles, including models like the 1980-1986 Chevrolet C10, 1980-1986 Chevrolet Camaro, and 1980-1981 Buick Century. It includes all steam holes, which are important for proper coolant flow and temperature management in the engine block.