I'll try to shorten this story. On Oct 20th I went to Numidia for T+T to make sure I was ready for the Hagerstown combo that was two weeks away. After the second pass I let the car cool for about 45 minutes while chatting with a racer. I decided to make a timing change and as I was timing it I sprung a leak in the lower part of the radiator, it was frustrating but I had no way of fixing it there. Rather than do my own repair as I have done on many street cars I brought it to the most recommended Rad repair shop in the area, while searching everywhere online and Mopar forums to see if I could find a good one, everything I found was junk. On the Wed before the Hag race, the shop told me it was in poor shape and they couldn't promise it would hold but they could recore it for 500 dollars or 150 to try my luck, I said I'll pass on both options. In my basement I had a 3 core version of the one that was in the car that appeared to be in clean shape, I installed it on Thurs eve and it had a small leak in an outer core. Friday I left work for a couple of hours to repair it myself and as I gently removed some fins to remove the bad core I could see this too was nothing but scrap,it was falling apart, I was pretty depressed at this point and knew I'd be staying home.
I was desperate to get some more runs before winter by going to Island Drag and decided to buy an aluminum replacement to use temporarily that was also a bolt in listed for my Challenger which I'm building for SS.
Here is a link to the unit I bought, it required one 1/4" hole drilled to bolt in.
http://www.championradiators.com/product/EC2375
Todd, my 50 year old intake is as good as the day it was made, it's dated 5-63, not the same thing here.