Offenhauser 3635 1955-1957 Packard, Nash, & Hudson OHV V8 to Ford/Mercury Transmission
$459.0055-57 PACKARD,NASH, & HUDSON ohv V8 to early FORD & MERCURY transmissions
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55-57 PACKARD,NASH, & HUDSON ohv V8 to early FORD & MERCURY transmissions

Offenhauser 3640 LaSalle-Cad Trans Adapter. Has early Ford mounting flange or bolt pattern. Adapts to any other adapter that has Early Ford Trans Flange. From there to Cad or LaSalle Trans. Uses stock Early Ford Clutch Release, shaft, fork, throw out bearings, etc. This allows the us of the mentioned transmission in place of the Early Ford type. Used after the installation has been made with an Early Ford trans., and same does not stand up. When using this adaptor, no clutch linkage changes are necessary, such as pendulum pedals, slave cylinder, etc.Please note that this product is currently not being manufactured by Offenhauser.


The Offenhauser 3660 Accepts two 3 bolt 97’s on a small Rochester or Holley 4 barrel – Manifold The new Offenhauser “2×4” adapter. The ONLY adapter which allows you to mount two of the popular Stromberg 3 bolt carburetors in place of either an early or late quad carburetor. This universal “2×4″ adapter fits…

Overall Width – 3-1/4″
Base Width  – 2-3/4″
Height     – 1-3/4″

Not a falsie! Polished aluminum “Gets the Job Done.”
Approximately 2″ wide at top and 1 1/4 ” high. Complete with gaskets.


The Offenhauser 3858 accepts 3 bolt carbs on a 2 bolt adaption A base. The stud to stud spacing on our adapters are as follows: Offenhauser 3859 – 2 15/16″ Offenhauser 3858 – 2 5/8″

The Offenhauser 3859 accepts 3 bolt carb on 2 bolt adaption B base The stud to stud spacing on our adapters are as follows: Offenhauser 3859 – 2 15/16″ Offenhauser 3858 – 2 5/8″

The Offenhauser 3860 accepts 3 bolt carb on 4 bolt adaption A base

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

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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