I've had one in my car for about 5 years now and I would not recommend it. The paint chipped off within 2 weeks, it's crazy heavy, and the side caps came undone from the top about a year ago. It does a decent job of cooling, but there are a lot better, lighter radiators out there for the same price or less.
I have a YO repro radiator in my 68 Charger - as Wish4hemi said, the paint chipped off right away and looked terrible - I just took it out last summer to strip and repaint. No stamp markings, but I got mine 10 years ago - they may have the right stampings now. Other than that, I think they look identical to an original.
In terms of performance, it does the job - no complaints.
The repops are by Glen-ray around 1K, I have a 68 BB, M/T radiator if your interested, its for a b-body 383/440 but should look a lot better than aftermarket. # 043