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The Cometic MLS head gasket for GM L42/L61 Gen‑1/2 ECOTEC (87mm bore, nominal .075in) is made from three to five layers of stainless steel with embossed outer layers coated in Viton and AMP for heat and surface resistance. The Viton coating is rated to 250°C (482°F). The multilayer construction and uncoated shim center provide strength, rebound, and adaptable thickness while sealing reliably without sealants.
Cometic GM L42/L61 Gen-1/2 ECOTEC .075in MLS Cylinder Head Gasket - 87mm Bore
