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This Cometic MLS head gasket for Chevrolet Gen‑1 small block V8 has a 4.200" bore and a compressed operating thickness of .027" with steam holes. Built from multiple embossed stainless steel layers with Viton‑coated outer surfaces, the MLS construction offers robust sealing for aluminum and iron combinations, rebounds under load and resists corrosion. It’s specified to provide reliable sealing without the need for sealants.
Cometic Chevy Small Block 4.200 inch Bore .027 inch MLS Head Gasket (w/All Steam Holes)
