Cometic 75-87 Buick V6 196/231/252 Stage I & II 4.02 inch Bore .027 inch MLS Head Gasket

This is a Cometic Multi-Layer Steel (MLS) head gasket, part number C5692-027. It's built for Buick V6 engines with a 4.02 inch bore, specifically designed for Stage I and Stage II performance levels. You get one gasket in this package, ready to seal your cylinder heads to the block.

What makes this gasket stand out is its construction. It's made from multiple layers of stainless steel, which gives it a lot of strength and helps it resist 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 advanced design means it seals exceptionally well, even in high-output engines, and doesn't require any extra sealants. It's a solid choice for both aluminum-to-aluminum and aluminum-to-cast iron head and block combinations, as it can handle the stresses between different metals.

This gasket has a compressed operating thickness of 0.027 inches, which is important for maintaining proper compression ratios. It's designed to fit a wide range of Buick V6 vehicles from the mid-70s through the early 2000s, and even some Chevrolet models from the same eras, making it a versatile option for many rebuilds and performance builds.