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The Cometic MLX cylinder head gasket for Ford RY45 (4.290in bore, .040in) — left-hand — features an integrated stopper layer that enhances combustion chamber sealing and improves clamp load around the cylinder without increasing bore distortion. MLX gaskets use MLS-grade materials and need no sealants or re‑torque for reliable sealing.
Cometic Ford RY45 4.290in Bore .040in MLX Head Gasket - Left
