Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .051in MLS Cylinder Head Gasket - 4.155in Bore

This is a Cometic Multi-Layer Steel (MLS) cylinder head gasket designed for Chevrolet 4.3L Gen-1 90-degree V6 engines. It features a 4.155-inch bore and a compressed thickness of .051 inches. This gasket is built to handle the demands of higher output engines and is suitable for applications using aluminum heads with either aluminum or cast iron blocks, as it can manage the shearing forces that arise between different metals.

The construction uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating ensures a strong seal in harsh conditions and across various surface finishes. The center layer is uncoated stainless steel, allowing for precise thickness control to meet specific engine requirements. These MLS gaskets do not require any additional sealants for installation.

This gasket fits a wide range of Chevrolet and GMC vehicles, including models like the Chevrolet Astro, C1500, and S10 Blazer, as well as GMC C1500 and K2500 trucks. It's a well-built option for rebuilding or repairing the top end of these engines.