Cometic Chevrolet Gen-3 Inline 6 .066in MLS Cylinder Head Gasket - 4.125in Bore

Cometic Gasket is known for making well-built sealing solutions, and this Multi-Layer Steel (MLS) head gasket is a prime example. It’s designed for Chevrolet Gen-3 Inline 6 engines with a 4.125-inch bore, offering a compressed thickness of 0.036 inches when installed. This gasket is ideal for high-output engines, whether you're pairing aluminum heads with an aluminum block or aluminum heads with a cast iron block, as it can handle the shearing forces that arise from dissimilar metals.

What makes this gasket stand out is its construction. It uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This Viton coating ensures a strong seal even in demanding conditions and on various surface finishes. The center layer is uncoated stainless steel, allowing for precise thickness control, like the 0.066-inch specification of this particular gasket.

This gasket fits a wide range of vehicles, including many Buick, Checker, and Chevrolet models from the 1960s and 70s. It's built to provide maximum sealing performance without needing additional sealants, making it a solid option for engine rebuilds where reliability is key.