I installed a 26" one in a buddy's car a few years ago. Dropped right in. Factory shroud bolted on perfect. Looked stock.

But... he ordered the higher horsepower version with the thicker core. Factory fan and clutch wouldn't fit. Had to install a Jaguar fan clutch. With the benefit of hindsight, he should have just ordered the stock replacement one which would have been more than adequate.

Another buddy purchased a 22" unit for his 340 'Cuda, and it did not resemble a stock unit. Had a stamped tank, but lacked the ribbing. On top of that, his car still runs hot, but I think he's got other issues.

I'm potentially in need a of a 22" radiator (my stock one is leaking, but repairable). Not sure I'd want to use one of the Griffins in my stock appearing engine bay.