This is my setup. It's on a 64 Sport Fury. The point is, I have a 22 inch opening, but I'm using a 26inch radiator, and shroud from a 1969 Road Runner, and the Summit fan. Runs 180 to 190 in Florida weather. I only used that particular radiator since I had it. It is a 3 row brass. Supposedly, a 2 row aluminum will cool as well, giving you some needed radiator to water pump clearance.
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View attachment 1715227979