both my Canadian '52 and '53 chevrolet 1/2 tons had the 'normal' chevy style, Rad cap on top of tank, sides of support straight, not bent as shown above.
I know this does not answer your question, just adding to the body of knowledge
only picture I have, from '53 parts truck I sold. The one in my '52 has been cut up to tip the bottom of rad forward so it is no help:
