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The Cometic MLS head gasket for GM L42/L61 Gen‑1/2 ECOTEC (87mm bore, nominal .036in) is built from multiple embossed stainless steel layers with outer Viton coating and AMP treatment for harsh sealing conditions. Compressed operating thickness is 0.098". An uncoated stainless shim layer permits thickness variation while the multilayer design provides corrosion resistance and reliable sealing without the need for sealants.
Cometic GM L42/L61 Gen-1/2 ECOTEC .036in MLS Cylinder Head Gasket - 87mm Bore
