Cometic Chevy 229/262 V6 4.3L 4.155in .040in MLS Head Gasket

Cometic Gasket is well-known for making solid sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s built for Chevrolet 4.3L Gen-1 V6 engines, specifically those with a 4.155-inch bore and needing a .040-inch compressed thickness. This gasket is designed to handle the demands of high-output engines, offering a reliable seal without needing extra sealants.

What makes this gasket stand out is its construction. It’s made from multiple layers of stainless steel, which gives it increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well in tough sealing environments. This design is great for pairing aluminum heads with either aluminum or cast iron blocks, as it can manage the different expansion rates and shearing forces between those materials. The center layer is uncoated stainless steel, allowing for precise thickness control.

This gasket fits a wide range of Chevrolet and GMC vehicles, including models like the Chevrolet Astro, C1500, and S10 Blazer, as well as the GMC C1500 and Jimmy. It’s a well-built option for anyone rebuilding or repairing their engine.