Uploaded more pics in my link. Today I took the radiator to work and welded new brackets on it. I moved it down and back into the core suport 1". It looks like it will work now.
Originally Posted by 32vld
Dropped a 54 235 into my son's 46. No water pump adapter
was used and everything fit. Don't remember the belt
width though the 54 pulleys and generator were used as
was the original radiator.

Maybe your aluminum radiator dimensions are different from
the original radiator. Jeffrey

I did check the original radiator and it mounted the same as this one does. How ever, I did have to drop it down a little because the cap hit the core support brace that runs from the firewall to the core support. So that was different for sure. After looking at it more closely,I believe the fan I have may not be the right one for this application, and I figured out that the blades were bent forward a little, some more than others. I made a adjustment to the fan blades and now have a good inch of clearance.