Radiator recommendation for my 410 stroker

11.2 said

I do have room for a 26", I just figured that if I'm changing I would want to get the best. I would hate to go to a 26" and still be having problems and having to go to a dual pass in the end. I talked to a couple rad shops and manufacturers today and they basically said the same as you. I think I'm going with the 3 core champion. I have room for the 4 core but sounds like they can actually be more restrictive air flow wise.

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You are right on the 4 row. I ran some quick numbers, and you will probably get as good or slightly better cooling with a 2 row 26" than a 3 row 22". Each of the 2 rows will get cooler air than the 3rd row of the 3 row rad, the overall airflow rate will be higher with most fan setups, and these factors makes a big difference when the air temps get high and you are working with small difference in ambient air vs. coolant temps. A 26" 3 row will for sure cool more than a 22" 3 row.

And don't just go by the HP ratings.... these are computed for limited cases, like running down the strip for 12-15 seconds and then idling a lot, not constant driving at lower HP levels.