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Cometic MLS head gasket for GM LS1 (4.085" bore, .040") uses multiple embossed layers of AMP coating and stainless steel to cope with demanding sealing environments. The embossed outer layers conform to various surface finishes while the uncoated stainless center shim allows thickness variation. MLS construction requires less clamp load, reduces bore distortion, and distributes sealing load across the combustion area for reliable sealing in high-stress applications.
Cometic GM LS1 Small Block 4.085in Bore .040in MLS Head Gasket
