About 2 years ago, I replaced the original radiator in my '71 GTO, with one from Cold Case. To my knowledge, nothing wrong with the original except it was old and I wanted a more modern one. Didn't want to take any chances. The Cold Case bolted right in and looks just like it belongs there. No problems thus far.
Should also mention that I bought an all welded, 2 row aluminum radiator, from Intercity Car Parts, in Ohio, for my '62 SS 409. It looks well constructed and bolted right in. I don't think it has a manufacturer's name on it. Probably an import from China. This radiator was almost half the price of others for what I think is pretty much the same thing. I think that is what got my attention. This radiator works perfectly. Keeps my 409 engine at 180-185 degrees all day long on a hot July day. I have no complaints about the Cold Case radiator. Certainly a well constructed radiator. To do over again, I think I would have looked at Intercity to see if they might have one for my GTO, Nicholas.