Cometic Chevy BB 4.540in Bore .070 inch MLS 396/402/427/454 Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for Chevy Big Block V8 engines. It features a 4.540-inch bore and a compressed thickness of 0.070 inches, making it suitable for a range of applications including the 396, 402, 427, and 454 cubic inch engines. These gaskets are built to handle the demands of high-output engines and are a solid choice for both aluminum-to-aluminum and aluminum-to-cast iron block configurations.

Cometic's MLS design uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can withstand temperatures up to 482 degrees Fahrenheit, ensuring a reliable seal even in harsh conditions. This construction means the gasket doesn't require any additional sealants, simplifying installation. The center layer is uncoated stainless steel, and its thickness can be varied to meet different engine build requirements.

This gasket fits a variety of Chevrolet and GMC trucks and vans from the early 1990s, such as the C1500, C2500 Suburban, and K2500 models. It's a well-built component that offers dependable sealing for your engine rebuild.