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1955 Buick Special Manifold


Heine Hansen - DK

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A manifold from a '54-'56 should fit--for '56, you'll need a single-exhaust manifold. They'll all work whether it's 264 or 322.

Also, for what it's worth, the '56 manifold outlets are larger diameter. If you find a pair of '56 single exhaust manifolds, you'll have a better flowing exhaust system.

-Brad

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Hey Heine,

See Judd's post on a different forum below. In case you can only find dual-exhaust headers...

56 dual exhaust manifolds will work but you'll have to cut holes in the drivers side frame like on a 56 for the pipes. I think there are issues with the brake cylinder also but I know others have converted a 55 to duals so it can be done. An upgrade for a 55 322 would be a 56 4 barrel 322 they have the highest compression of any 322, the biggest valves, the highest lift longest durration cam, and the most free flowing heads.

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