Radiator recommendation for my 410 stroker

11.2 said

I have a 22" b cool, down flow, 2 core with 1" cores. im having a terrible time with heat but mainly because I have a huge ac rad smack dab in front.
I'm thinking about a dual pass by northern but still checking into it. there must be a reason why dual pass rads are not commonly used.

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Possibly because most cars are not configured for both hoses out of same side of the rad? Dual passes are not magic and don't solve all problems by any means; heat transfer is heat transfer. Dual pass rads offer more restriction, so there will be less coolant flow, but they cool what they do flow by more degrees. Your car's cooling could be made worse with the lower flow of a dual pass.

Just some random thoughts here: Net overall heat extraction may be less with a dual pass for a regular car application because the coolant is cooler when it enters the 2nd pass and a lower coolant to air temp difference will mean less heat extracted out on the 2nd pass. And if you have hotter air from the AC condensor that will make that issue even worse, as the air to coolant temp difference in the 2nd pass will be even lower. Makes sense for running 240-250 degrees in a race car where the coolant will still be pretty hot when it enters the 2nd pass but not for a regular car app IMHO.

Did not someone say that the B-Cool rads are problematic in his experience in your other thread? Or perhaps that was someone else's thread. I don't know if they are or not, but getting a better regular flow rad would be my solution, rather than going off in an unknown directions with a dual pass and its lower flow rate. Any room for a 26" rad?