Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .080in MLS Cylinder Head Gasket - 4.060in Bore

When you're rebuilding the top end of your Chevrolet 4.3L Gen-1 V6, you need a head gasket that can handle the job. This Cometic Multi-Layer Steel (MLS) gasket is designed for a 4.060-inch bore and has a compressed thickness of .080 inches, making it a solid option for many 4.3L V6 engines found in vehicles like the Chevrolet S10, GMC C1500, and Chevrolet Astro from the mid-80s through the mid-90s.

What makes this gasket stand out is its construction. It's built with multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle tough sealing environments and varying surface finishes. This combination means you don't need extra sealants, and it's well-suited for engines using aluminum heads with cast iron blocks, or even aluminum to aluminum combinations, as it can handle the shearing forces between different metals.