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Cometic's MLS head gasket for Chevy big-block applications is a multi-layer steel gasket with embossed outer layers coated in Viton for heat resistance and corrosion protection. At a compressed thickness of 0.040" and a 4.580" bore, this MLS design eliminates the need for sealants, tolerates dissimilar metal sealing surfaces, and includes features such as slotted valley bolt provisions for robust sealing in high-output engines.
Cometic Chevy BBC / Dart 2 Bolt Intake Block 4.58inch Bore .040 thick MLS Head Gasket
