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#1
06-23-2021, 11:37 AM
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1” vs 1-1/4” tube aluminum radiator
Has anyone on here gone from a 1” to 1-1/4” two tube Aluminum radiator? If so do the larger tubes really cool that much better?
I currently have a Cold Case radiator with two 1” tubes (P/N RPE36L) and it struggles to keep my car cool on hot days. I am considering upgrading to their HO/SD radiator with two 1-1/4” tubes (P/N GPG34AS) but want to know if the additional tube thickness is worth it. Since my GTO is a factory non-AC car with the 15.5” radiator, my other option is to modify my core support to fit the larger factory AC radiator that measures 17.5” (P/N GPG38AS). I really don’t want to cut up my core support if I absolutely don’t have to.
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Sean 1967 GTO Koerner built 468 with Edelbrock RP’s 315cfm by Butler, Luanti Voodoo HR 20510713, 4l80e, Holley Terminator EFI |
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