Champion radiator for ~500hp small block??

gzig5 said

So which is considered better for a performance application, as opposed to a daily driver? The one I'm looking at comes from Champion Radiators.

Ran across a Griffin two row x 1.25" tube locally as well, but it might be too wide.

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Width of the radiator is not as critical as the core thickness. One of the things you need to consider is how thick the core is. The Griffin at 2.5 is pretty fat. Our A bodies have very little room between the radiator and the water pump snout. Space is a premium that needs to be considered.