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Cometic MLS head gasket for Ford small-block V8 with AFR heads (4.030" bore) uses embossed stainless steel outer layers coated with Viton plus an uncoated center shim for a compressed thickness of 0.060". With coolant eyebrow for AFR heads, it seals aluminum interfaces without sealants. The MLS construction rebounds to resist corrosion, handles shearing forces between dissimilar metals, and evens clamp load to reduce bore distortion in high-output builds.
Cometic Ford SB 4.030 inch Bore .060 inch MLS-5 Head Gasket (w/AFR Heads)
