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The Cometic MLS head gasket for Buick Big Block V8 with a 4.385 in bore and .030 in nominal thickness is a multi-layer stainless steel cylinder gasket that seals high-output engines without sealants. Embossed outer stainless layers feature a Viton coating to resist harsh sealing environments and up to 250°C (482°F). A stainless shim layer allows thickness tuning; the MLS build rebounds, resists corrosion and requires less clamp load to reduce bore distortion.
Cometic Buick Big Block V8 .030in MLS Cylinder Head Gasket - 4.385in Bore
