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The JE Pro Seal head gasket for Ford Cosworth YB and related DOHC/SOHC applications fits a 92.5 mm bore and uses a 0.051 inch thickness for heavier gasket clearance needs. It provides a direct-fit replacement option for Cosworth YB family rebuilds and repairs when a thicker gasket is required to match deck clearance. Use JE reference C4218-051 to confirm fit and thickness.
JE Pro Seal Ford Cosworth DOHC YB/ SOHC OHC/NEP 92.5mm 0.051in Headgasket (ref C4218-051)
