Looking for a dimension where to set our 5 window Model A body onto a 32 frame. Distance from the front end of the frame to the beginning of the body (front of cowl) Any other dimensions would be appreciated ie: location of front and rear cross members and K member.
Here's my take. Assuming you are using stock '32 Ford frame dimensions. That means you should reference the '32 Ford frame dimensions (which are on the net and all over the HAMB). This will locate your K member and front and rear crossmembers. As far as where the body sits, what I believe is most important is that the centerline of the rear axle is aligned with the centerline of the rear wheel opening in the body. If you start there it should allow good clearance of the engine to the firewall (model A body is a bit shorter than a '32). That's not the only way to do it but I think it works! At least it did once for me.
What grjrd said, the body needs to be located on the frame based on the rear axle, otherwise the rear tires won't be centered in the wheel wells. Assuming that the frame and suspension is in the "roller" stage set the body on it, center the rear wheels in the wells. Based on your comments it looks like the frame isn't built yet, I had a pro with a frame table build my 32 frame using Model-A front and rear cross members, that frame needs to be built correctly by a qualified person.
x3. In addition to getting the rear tire centered in the wheelwell, you'll end up with an engine compartment that's 3" longer than a stock Model A, since a stock A has a 103" wheelbase and a stock '32 has a 106" wheelbase.
Stumbled on this from a google search. I know it's old, but very very helpful. The link provided has a great drawing to go off of. And, as of 1/11/23, it's still a valid link(not a 404 error).
I always centered the rear wheel well over the rear axle. On the deuce chassis I did especially for a 30/31 A I always moved the front cross member ahead an inch which allowed the installation of a SBC without recessing the stock firewall. I also used a 2 inch shortened deuce radiator to get the hood top to flow at the same angle as the cowl. Did quite aa few this way.