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post #11 of (permalink) Old 11-27-2019, 07:32 AM
Big Dave
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Join Date: Jan 2006
Posts: 12,895
 
As Pete stated your radiator is short for a full size car. It may have been sourced out of a mid size or a compact car which has a smaller radiator due to restricted space (why it is so hard to cool a BBC Camaro). I used a radiator out of a BBC light truck which is bigger than an Impala radiator to cool my maximum sized (for a standard deck height) BBC.

If you look at a Semi truck you see the size radiator that is required for a 350 horse engine (that is all the horsepower an in line six diesel will have on average, though a semi has many other engine options up to a V12 available to it if you don't mind buying a lot more fuel to get you to the same spot). That is why a Semi can idle all night long and not over heat. With radiators bigger is better.

Big Dave
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