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This Cometic MLS head gasket for Chevrolet Gen‑1 small block V8 uses embossed stainless steel layers with Viton‑coated outer faces, has a 4.200" bore and .045" compressed operating thickness with steam holes. The MLS construction provides strong sealing for high‑output engines, tolerates aluminum-to-iron interfaces, and requires no sealants. Its layered design helps rebound under load and resists corrosion for durable sealing performance.
Cometic Chevy Small Block 4.200 inch Bore .045 inch MLS Head Gasket (w/All Steam Holes)
