• Offenhauser 3920 Oldsmobile Water Crossover

    Offenhauser 3920 Oldsmobile Water Crossover

    Price range: $240.00 through $267.00

    Offenhauser 3920 Oldsmobile Water Crossover This water crossover is adaptable to fit Oldsmobile engines from 1949-’66 3920 fits Oldsmobile 303 & 324 CID engines 1949-’56 3921 fits Oldsmobile engines 371 CID 1957-’58 5197 fits Oldsmobile engines 394 CID 1959-’66

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  • Offenhauser 3921S Oldsmobile Water Crossover Spacer, Pair

    Offenhauser 3921S Oldsmobile Water Crossover Spacer, Pair

    $74.00

    Offenhauser 3921S Oldsmobile Water Crossover SPACER ONLY 1957-’58. Sold in a pair. For use with Offenhauser part #3920. Allows 3920 to fit with Oldsmobile 371 CID engines. 1/4″ spacers should be installed between the crossover and the manifold. Gasket not provided.

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