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Re: Four Barrel Intake Manifolds

From: Mike Patterson
Date: February 10, 2002
Time: 14:42:50


I far as I can tell the WCFB used a 3 3/4" by 3 3/4" mounting base. The AFBs used either a 4 1/4" by 5 1/2" or 5 1/8" by 5 1/2". Depending on the manifold/carb combination you find, you may also run into a problem with the throats in the manifold in the intake being to small to allow the throttle plates to open (AFB on early intake). They used to make spacer plate that would allow the use of either a WCFB on a latter intake or a latter AFB on a WCFB intake. (thats what I took the measurements off of).


Last changed: July 19, 2018