Quote
Originally posted by Hot Rod Dad:
I'd estimate that a 2-core aluminum radiator is as efficient as maybe a 3 core copper/brass radiator. However, when you get up into the 4 or 5 core copper radiators, I don't think the aluminum cools as good as those.

...And this is by experience. I easily keep two big block engines cool with 5-core copper radiators, yet the fancy schmancy 2-core aftermarket aluminum radiator in my 350 Camaro barely does the job!!!
Interesting...what size aluminum radiator do you have in that Camaro? The Corvette guys swear by them as superior replacements for the original 4-row copper/brass radiators, even for big blocks.

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