Can also depend on how much you want to spend. A guy I know put a direct fit aluminum rad in his 65 Coronet and paid over $500 dollars for it. I bought an Afco aluminum rad from Mancini for about $300 that fit in fine but had no holes in the brackets as I had to just mark and drill holes in the brackets. Course I did not mind since it was over $200 dollars cheaper and it cools my 63 good. Ron