Aluminum radiator for a 68 dart

I'm in need of a radiator for a 1968 Dodge Dart. 360 eng with 320 HP. As usual I'm coming to my peeps who have more information than an encyclopedia. How what when and where can I get what I need. Thank you guys it's much appreciated as always.

First thing you need to know is which side the lower radiator hose come out on. 69 down come off he drivers side and 70-up come off the passenger side, so this will dictate which radiator you use.

I posted some pics of m Cold Case install here. Autoxcuda is correct, the thicker core will cause issues with fan and shroud fitment but it can be overcome. My 340 stays 180 even idling for long periods as I tune the engine.

Cold Case Radiator Shroud?