Cometic 75-87 Buick V6 196/231/252 Stage I & II 3.86 inch Bore .040 inch MLS Head Gasket

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer coating of Viton rubber. This construction is designed to provide maximum sealing performance, especially for engines that see higher output. The Viton coating is heat resistant up to 482°F (250°C) and handles tough sealing environments, load conditions, and various surface finishes, making it suitable for both aluminum-to-aluminum and aluminum-to-cast iron block configurations. The center layer is uncoated stainless steel, and the compressed operating thickness for this specific gasket is 0.040 inches, with a bore size of 3.86 inches.

MLS gaskets offer increased strength due to their layered stainless steel construction, which also helps them rebound and resist corrosion. They are designed to withstand the shearing forces that can occur between different block and head materials. Because of their advanced construction, these gaskets do not require any additional sealants for installation, simplifying the process. This gasket fits a wide range of Buick V6 engines from the mid-70s through the early 2000s, including models like the Buick Regal, LeSabre, and Electra, as well as some Chevrolet and Cadillac applications.