I will have to do some trimming to get that to fit. They recommended there 22" with the 1.25" tube up grade. Think this bigger radiator would be just as good? Its about $300 less.
I'm sure someone can do the math but it's probably close.
I have cooled 550 HP engines on a stock 26 inch radiator in desert heat. That had just 2 half inch cores in it. And, that particular engine had the cast iron water pump (talking small block stuff) which isn't as good as a Milodon water pump.
So I know a two .500 core will easily cool 550 HP if everything else is correct. And that engine had about 1 1/2 inches of filler in it. Whatever just over the top of the core plugs is.
And that is a copper radiator. Most people say aluminum cools better than copper.
