We used to be stuck making the stock radiators work, now there are so many good aluminum radiator builders IMO it's just not worth the hassle of messing with the old ones.

If Don sees this, he just had a radiator custom built for one of his projects. Pics of it on the thread "Project $ 3k underway. It's a very high quality radiator....

As for your question, will it handle the cooling....Maybe, doubt it though. Usually if you try to run a high enough pressure in the cooling system to make it work right, it just continually blows holes in the old radiator. At least that has been my experience with them.