[dixiedelux]

A big thanks for the pertinent and specific information, Bob. That sketchy, gray area about the clearance problems if not using a 40 fan scares me. The builder uses a 40 crank mount fan on his and has no immmediate problems but he says he wishes it ran a little cooler. He is convinced a set of Haney rebuilt pumps will do the job. Was improper cooling inherent in 40 Fords?
He told me today the engine has a Mercury stamped Bell.
I asked about stock ford exhaust manifolds because of being assured I wont have to do exhaust work immediately. I have all new exhaust on my 40. Headers, for sure, will be on the want-to list!