Description
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 any quad manifold. Can be used on Dual Quad installations where the distance between centers of the Quad carburetors is at least 8-3/4”. This is great for the enthusiast who wants to run on fuel using four easily converted 3 bolt carburetors on a Dual Quad Manifold. Complete with studs and Allen Screws.
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