Cometic Chevy Gen1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.060in Bore

This product is a Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for Chevrolet Gen-1 Small Block V8 engines. It features a 4.060-inch bore and a compressed operating thickness of 0.066 inches. This gasket is built to handle the demands of high-output engines and is suitable for use with both aluminum and cast iron blocks, as well as aluminum heads. It fits a wide range of vehicles, including models like the Chevrolet C10, Camaro, and GMC C1500, from the early 1980s through the mid-1980s.

The gasket is constructed from multiple layers of stainless steel, which provides increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can withstand temperatures up to 482 degrees Fahrenheit. This coating ensures a reliable seal in harsh conditions and across various surface finishes. The multi-layer design also helps to manage the shearing forces that can occur when mating different types of engine materials, like aluminum heads to cast iron blocks.

Because these MLS gaskets are designed for maximum sealing performance, they do not require any additional sealants. The center layer of stainless steel can be varied to achieve different thickness requirements, and this specific gasket is set at 0.066 inches compressed thickness. The valve pocketed bore design is also a notable feature for specific engine configurations.