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This Cometic MLS head gasket is specified for GM LS1 small-block with a 4.160" bore and .120" thickness. The multi-layer steel construction combines embossed AMP-coated outer layers with an uncoated stainless center shim to meet demanding sealing conditions, reduce required clamp load, and distribute sealing forces across the bore. It is intended for engine builds that call for this bore and gasket thickness specification.
Cometic GM LS1 SB 4.160 inch Bore .120 inch MLS Head Gasket
