Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .045in MLS Cylinder Head Gasket - 4.155in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring Viton rubber coating on the outer layers. The compressed operating thickness is .045 inches, and it has a bore size of 4.155 inches, making it suitable for Chevrolet 4.3L Gen-1 90-degree V6 engines. MLS gaskets are known for their ability to handle high output engines and don't require any additional sealants, simplifying installation. They are a solid choice for engines with either aluminum or cast iron blocks, as they can manage the shearing forces that can occur between different metals.

The strength of these gaskets comes from their layered stainless steel construction, which also allows them to rebound and resist corrosion. The Viton coating on the outer layers is a heat-resistant material, capable of withstanding temperatures up to 482 degrees Fahrenheit, ensuring it can handle demanding sealing environments and various surface finishes. The center layer is uncoated stainless steel and can be varied to achieve different thickness requirements, like the .045 inches found in this specific gasket.

This gasket fits a wide range of vehicles, including models like the Chevrolet Astro, C1500, and GMC C1500. It's designed to provide maximum sealing performance, ensuring a reliable seal for your engine rebuild.