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Cometic’s MLS head gasket for GM LS Gen‑3/4 small block V8 fits a 4.130" bore with a .040" compressed thickness. Its multi‑layer stainless steel construction and Viton‑coated outer layers provide reliable sealing for aluminum head-to-block interfaces, eliminate the need for sealants, resist shear and corrosion, and help maintain even clamp load distribution to protect bore geometry under demanding conditions.
Cometic GM LS1 SB 4.130 inch Bore .040 inch MLS Head Gasket
