Radiator Question - Champion

Looking at this for my '66:

Valiant Radiator (65-66) Slant 6


Those of you that have bought and used it, is it a direct fit or are there any modifications needed? Thanks!

I believe that is the radiator I used 5 years ago, but I'm not 100% positive. The only modification was that I needed to drill new mounting holes. It has worked great, I've put about 8K miles on the engine since then with no radiator issues.