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Cometic MLS head gasket for GM LS Gen-3/4 small-block V8 with a 4.160-inch bore and .040-inch compressed thickness offers robust sealing for high-output engines. Embossed stainless-steel outer layers use Viton coating and the center shim is uncoated stainless steel to accommodate thickness needs. MLS construction eliminates the need for sealants, handles aluminum-to-aluminum or aluminum-to-iron joins, resists corrosion and shearing, and helps distribute load to reduce bore distortion.
Cometic GM LS1 SB 4.160 inch Bore .040 inch MLS Head Gasket
