I drive a 1982 Corvette. My average summer temp is 98+ degrees air temperature. My car was running at more than 230 degrees with the AC off (240+ up hill). I tried magic water from a bottle, lower temp thermostats, and even driving without a thermostat. Nothing helped. I switched to a DeWitts Aluminum radiator and my car has not gotten hotter than 200 degrees with the AC. I'm using the same water pump and thermostat as before. Installation was easy. It took longer to flush the old radiator, than it did to install the direct fit replacement. DeWiits radiators are absolutely the best money can buy. I can once again drive my car on a hot summer day. THANK YOU! David Schultz
CorvetteForum Dec 2006Rog 64 asks: I need to buy a new radiator for my '64 coupe. Can anyone recommend a good source for radiators. (1)mdz06vetter CF Senior Member only one place DeWitt's - "all the major dealers buy from him" (2) Bluestripe67 CF Senior Member Member Since: Jan 2002 "No doubt about, don't cheat yourself, get a DeWitts." (3)my58 CF Senior Member Member Since: Oct 2004 "DeWitts should be your only choice. Tom is the best!" (4)John McGraw CF Senior Member Member Since: Mar 2001 "DEWITTS! None better." (5)Corbrastang CF Senior Member "I purchased one off of ebay... It took a lot of fighting to get it into place ...there are no cheap replacement radiators that fit." (6)mrg CF Senior Member Member Since: Nov 2001 "Dewitt's .. Hands down!" (7)redonred CF Member Member Since: May 2006 "I agree! I've looked around. I have a correct aluminum radiator on their way to me as I write." (8)kidvette CF Senior Member Member Since: Mar 2005 "Dewitts is a quality product from a quality vendor." (9)vetsvette2002 CF Senior Member Member Since: May 2004 "DeWitts! Best there is!" (10)64muscl Junior Member Member Since: Jun 2006 "I have a 64 Coupe, I installed the Dewitt with the Spal Fan. It works!" (11)StingrayL76 "DeWitt's is the only way to go" (12)Split_window SeniorForumMember"The radiators are the best out there." (13)Chuck_Gongloff"Here's another testimonial for DeWitt. Great product."
“DeWitts reproduction radiators have been judged many times, and even experience NCRS judges have accepted them as original. All too often, the cost “advantage” of the copper/brass replacement radiators results in an overheating vehicle. DeWitts aluminum radiators are clearly the best choice.” Noland Adams(Author & Corvette Historian)
“I installed the new radiator into my 1965 (365HP w/air) and I am very impressed! My coolant temperature is down about 30 degrees. I can finally use my air conditioning here in Texas. I had a copper/brass replacement radiator and at highway speeds it ran about 210 without the air. I can’t get it to go over 190 with the air on. I am very impressed with the detailing. I am a NCRS master judge and I appreciate the good work! Thanks again, I will spread the word.” Bob Cook(VP Texas Chapter NCRS
“Thank you for a wonderful product. I installed one of your correct aluminum radiators in my ’67 small block Corvette and I couldn’t be more pleased. The fit and appearance is perfect factory original, but the best part is that it runs cooler. I can now drive on a 90-degree day and it stays cool. What an improvement over the copper/brass radiator I replaced. Keep up the good work.” Mary Ott
I spent a few minutes talking to Mr. DeWitt about my overheating problem in my 1980 Vette after installing a 383CID/440HP stroker engine. The new 4 row brass radiator was not cooling properly here in the 100 degree Texas heat. He was very helpful and informative about the differences in his aluminum radiator and the conventional brass ones. Within the week, I installed the new DeWitt's radiator. I could not be more pleased with the difference - at least a 30 degree drop with no more than 190 degrees at idle with the A/C running!! It would climb to 230 under the same conditions before with the 4 row brass radiator. Thank you does not say enough! Bill Fri William Fri
“I just received the new aluminum radiator for my ’66 roadster. The running temperature with the copper/brass replacement radiator was between 200-240 degrees. I could not use the air conditioning without overheating, even with the help of an electric fan. I am happy to say that the new DeWitt/Harrison aluminum radiator runs at 180 degrees and I can now use the AC on a 95 degree day. Myke Wingett
“My experience is that your aluminum radiators perform flawlessly. I am quite impressed when informed afterwards that the radiator I judged as “original” was in reality a DeWitt Radiator. Your products are of exceptional quality in the Corvette Hobby.” Dale Pearman(NCRS Master Judge 400 level, Bloomington Gold Instructor)
I just installed your aluminum radiator in my 1966 corvette 327/350. Nothing was changed except the radiator and the coolant. The result is a true 30 degree minimum drop in temp. 210 before to 180 after. Used to be on the highway the temp would climb to 220-230 unless I put the heat on. Now it stays at 180. The old radiator was a copper/brass repro and I don't know how old, as it was in the car when I got it. Ordering was easy, delivery was quick and it looks great, too. Great job. Thank you very much. I am a believer! Rich Giannotti Rich Giannotti
“After installing two copper/brass replacement radiators in my 62’ F.I. driver, I finally installed your aluminum radiator. The car runs cooler and the F.I. works better. These are outstanding radiators in both originality and performance. Keep up the great work!” Joe Calcagno(NCRS & Bloomington Gold Judge)
Finally broked down and bit the bullet. The radiator, a copper/brass unit had was adequate to keep the motor cool until I changed the horsepower config from the stock 300 horse to the 365 horse. In a word, horsepower is heat. When I added heat the replacement radiator just coudn't handle it. My wife and I took a spin and the outside temp had to be 95 degrees. We toughed it out for about an hour when we found ourselves in bumper to bumper traffic. The temp guage never moved beyond 185 and that new rad passed with flying colors. 6T5RUSH
After fightning an over-heating problem for four months (added a fan, tried the additive, took out the thermostat)in my 1964 small block Corvette I finally deceided the only way to solve the problem was a new radiator. After 5 days researching the net I decided on a Dewitt Direct fit. I ordered it on the 11th, and received it the 15th. All I can say is THANK YOU! My "second love" now runs at 180 degrees ALL day long in 90 degree Florida heat. You build a great product-deliver fantastic service, and I will be very happy to recomend you and your product to any one who needs a new radiator. Again thank you very much for a very fine product. Anthony Cassise Clearwater, Florida tonycassise@hotmail.com Tony Cassise
Test data is great but actual results are indisputable! You just can't disagree with these success stories and we have dozens of them. If you are thinking of purchasing a new radiator for your Corvette, seriously consider aluminum. Yes, they cost a little more but you will only have to buy one! DeWitts is now offering correct Harrison type aluminum radiators for the following models: 60-61E (3151116), 61-62SB (3150916), 63-72SB (3155316), and new for 2001 65BB, 67-69 L88, 71 ZR-1 (3007436).
