I am looking for the length from the front of the timing cover on Flathead ford to the radiator in a '32 Ford.
You've got a bunch of missing information... Are you talking stock 32 with a stock 32 flathead V8? What generation V8? Stock frame, or reproduction? Stock motor mounts? etc. Seems like you're going to get different information based on who you ask and what combination they have...
Lots of variables yep. Stock frame,Stock k member,3spd,8ba, original front mounts,front cross member in stock location,6".
Best measurement would be from block face machined surface where cover installs, as the many different timing covers and the accompanying distributors, pulleys, etc. are all different thicknesses. All flatty front surfaces are the same, total package depends on type of front hardware is chosen.
The other variable is that the engine leans back and the radiator leans forward. Maybe a dimension from the the front cover surface at the top to the radiator would be usable.
A stock frame should be 113-1/2 centre of front crossmember to centre of rear. Or 134" from end of rear frame rail to centre of front crossmember.