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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.
Offenhauser 3923K Buick Log Manifold 57-66 Linkage Kit
Intake Manifold, Pacesetter, Log, Aluminum, Natural, Six 2-Barrel, Chevy, Small Block
Offenhauser 6-Carburetor Log intake manifolds can be used with just two or up to six 2-barrel carburetors, depending on the application. They have a balanced “Jet Air Flo” design, with rectangular “Ventura” intake passages. Designed for 3-bolt carbs only.
“Chev”- With Heat 6 Carburetor Pacesetter Manifold for 348 ONLY, NOT 409.
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