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Cometic MLS head gasket for 1975–1987 Buick V6 (196/231/252) Stage I & II applications with a 4.02-inch bore and compressed operating thickness of 0.066 in. The multi-layer stainless assembly uses embossed outer layers coated in Viton and an uncoated stainless shim at the center. It needs no sealants, tolerates aluminum-to-aluminum or aluminum-to-iron pairings, resists corrosion and rebounds to maintain sealing, and distributes clamp load to reduce bore distortion while AMP embossing improves contact with varied surface finishes.
Cometic 75-87 Buick V6 196/231/252 Stage I & II 4.02 inch Bore .066 inch MLS-5 Head Gasket
