Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .080in MLS Cylinder Head Gasket - 4.155in Bore

Cometic Gasket is a well-known name for creating robust sealing solutions, especially for performance applications. This Multi-Layer Steel (MLS) head gasket is built to handle the demands of high-output engines, offering a solid seal without needing extra sealants. It's designed for engines with a 4.155-inch bore and a specific thickness of .080 inches when compressed, making it a good choice for rebuilds or performance upgrades on a range of Chevrolet and GMC vehicles like the S10, C1500, and Astro vans from the mid-80s to mid-90s.

This gasket 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 Viton coating is designed to work well with different block and head materials, including aluminum heads on cast iron blocks, and it can handle the stresses that come from those combinations. The center layer is stainless steel and can be varied to achieve different gasket thicknesses, like the .080 inches on this particular part, which is crucial for setting proper compression ratios.