Bill;
Look at it this way, you just saved yourself a bunch of money!. Some years ago I did research into having my radiator rebuilt to showroom condition. Interestingly I found that there is only one company left in the world that is making the Auburn style honeycomb radiator parts that our cars and others used in the 20's. That company is in England. I even contacted a company in New Zealand who advertises that they fix and make replacements for the honeycomb. I contacted them and they said that they even get their parts from England. Shipping over there would be costly, but most importantly to track the shipment would be hard. A call to Brassworks in California who have done a couple of our style radiators got me a quote of around $2,500 to restore or rebuild my radiator. So you have saved yourself a bunch.
Where Are You From? Oviedo, Florida
Do You own a car built by Durant? 1928 Durant Model 65
Rick, I found my best value on evapo-rust by buying the concentrate at ebay stores...An eight oz. bottle makes one gallon, free shipping at 15.90ea. and you will need 2 bottles...
What I found interesting was that the core was so plugged that it only took 4 quarts to initially fill the radiator to about 3/4" above header plate, then after about 2 1/2 days perculating and ocasionally topping off I drained out just over 5 quarts of evapo-rust....One thing to keep in mind is that all that rust and crud is a natural stop leak on these old radiators...In my case after perking for about a day there was a couple of seeps that showed up, so when I finished cleaning I drained out the evapo-rust and gave it a backflush with clean water then added a pinch of alum-a-seal and circulated that by purging for about 10 more minutes then put 3-lbs air pressure and no seaping, then I gave the radiator one last flush.....Mike, now I'm trying to figure out what I can spend that $2,500 dollars on that I don't have.