
Cometic MLS-5 head gasket for 1975–1987 Buick Stage I/II V6 196/231/252 engines with a 3.86-inch bore and .066-inch compressed thickness offers reliable multi-layer sealing. The gasket stacks embossed stainless-steel outer layers coated with Viton and an uncoated center shim for thickness adjustment. MLS construction needs no sealants, tolerates aluminum-to-aluminum or aluminum-to-iron pairings, resists corrosion and shearing, and helps distribute clamp load to reduce bore distortion for consistent sealing performance.
Cometic 75-87 Buick V6 196/231/252 Stage I & II 3.86 inch Bore .066 inch MLS-5 Head Gasket