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Cometic MLS cylinder head gasket for GM L42/L61 Gen‑1/2 ECOTEC engines, offered with a nominal .027 in thickness and an 89 mm bore. Multi‑layer stainless construction uses embossed outer layers coated with Viton and an uncoated center shim to provide sealing strength, rebound, and corrosion resistance. The MLS design seals aluminum heads to aluminum or iron blocks without sealants and helps distribute clamp load to reduce bore distortion.
Cometic GM L42/L61 Gen-1/2 ECOTEC .027in MLS Cylinder Head Gasket - 89mm Bore
