
Cometic MLS head gasket for 1975–1987 Buick V6 (196/231/252) Stage I & II applications with a 4.09-inch bore and compressed operating thickness of 0.066 in. The multi-layer stainless assembly features embossed outer layers coated with Viton and an uncoated stainless center shim. It needs no sealants, tolerates aluminum-to-aluminum or aluminum-to-iron mating surfaces, resists corrosion, and evens clamp load to reduce bore distortion. AMP embossing and Viton faces improve sealing performance across varied surface finishes and temperatures.
Cometic 75-87 Buick V6 196/231/252 Stage I & II 4.09 inch Bore .066 inch MLS-5 Head Gasket