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OK, I've seen lots of info on radiators on the Forum. I'd like to ask those of you who have replaced the radiator on your early C3's ('68-'73) to list the brand of radiator you purchased and any feedback [good or bad] on your satisfaction with that choice. I'm having it installed, so I don't need info on disassembly or installation issues.
As always, I really appreciate the info CF users can provide.
I replaced my stock brass/copper radiator with a 2 core aluminum from Dewitt's, which solved all my over heating problems and with the 2 spal fans, I got a little more HP,too!
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
I have not had to replace the radiator in my 68, but I replaced the radiators in both my 61 and 65. I went with Dewitt's aluminum radiators for both. They look correct and brought the temps down by almost 30 degrees. In my opinion they can't be beat. No need for any additional or electric fans on a stock Vette. I am running stock clutch fans on both and they run 180 all day long.
Went with the Dewitts direct fit aluminum rad and new standard clutch fan & fan blade,dropped 40 degrees from old copper/brass rad & electric fan system on car when bought.
1969 427/4 speed,runs at 176 degrees now!