Cometic Chevy Small Block 4.125 inch Bore .023 inch MLS Head Gasket (w/All Steam Holes)

This Cometic Multi-Layer Steel (MLS) head gasket is built with a .023 inch compressed thickness and features a 4.125 inch bore, making it a solid choice for rebuilding or upgrading your Chevy Small Block V8 engine. The MLS construction uses multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion and withstand the forces created when mating different block and head materials, like aluminum to cast iron.

The outer layers of this gasket are coated on both sides with Viton, a heat-resistant rubber material rated up to 482 degrees Fahrenheit. This coating is designed to handle tough sealing environments and varying surface finishes, ensuring a reliable seal without needing additional sealants. The center layer is uncoated stainless steel, and Cometic uses these layers to achieve specific thicknesses like the .023 inches found here. This gasket includes all steam holes, which are important for maintaining proper engine temperature.

This gasket fits a wide range of vehicles from the early 1980s through the mid-1990s, including popular models like the Chevrolet Camaro, Corvette, and GMC C1500. Always refer to the manufacturer's installation instructions for proper torque sequences and procedures.