If anyone lives in Massachusettes, I have decided to take my original 26 inch radiator that has never been repaired in for a re-coreing to: Harry Heitin Radiator, which has been in business since 1951! he told me on the phone that the new cores come from Maine, and a cleaning would not be the best way to go since Chrysler radiators have small tubes, he also would upgrade to a 3 row it looks like most and mine are 2 row, so all that work and money upgrading would be a no brainer for me. Right now after a flushing the 318 runs at 200 to 210 deg. at 90 outside temp at 70MPH. with a 3:23 rear end. It had been much hotter on the highway before, so I gave it a good flushing including the heater core. It's time to rebuild for reliability and make the entire drive line system new again, this would be the last part that has never been rebuilt. with 160k on the car. You can see the tubes looking in the radiator cap, opening that it needs a new core, some white sediment is stuck in the tubes. Also the cooling fins are crushed a bit here and there, so why not. At about $500.00 or less with a nice new core, correct paint job included its worth it for peace of mind. Located in Worcestor MA, Tel: 508 754-6020.I should have this done about the end of October when I stop driving the car for the year. I will keep everyone updated on my project.