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Cometic MLS head gasket for Buick Big Block V8 (4.400" bore) is a .086" compressed-thickness multi-layer steel gasket with embossed outer layers coated in Viton. MLS construction provides high sealing performance without sealants, suits aluminum-to-aluminum and aluminum-to-cast-iron combinations, resists corrosion and shear, and uses a variable center shim layer to meet thickness requirements while reducing clamp load and bore distortion.
Cometic Buick 400/430/455 V8 4.400 inch Bore .086 inch MLS-5 Head Gasket
