Champion 3 Row Rad into a 64 Dart

I used the 2 row radiator on my 64 dart. It sit too high up so i had to finesse the bolt holes to get the radiator low enough. I found this out the hard way when I took a long drive and coolant was leaking out the top of the cap. I took the cap off and noticed when i close the hood it bent the cap. I was able to make it home no problem and it was still running cool the whole way home.