408 still overheating :/
I have a similar radiator and use a chevy HHR fan, pulls a lot of air and cools my 340 pretty good. The only downside I had, like someone mentioned, was not enough air flow through the engine compartment when its hot out. I have the stock hood with no scoop so hot air has no where to go, I put some rubber flaps on the shroud and cut holes for increased air flow, seems to have helped. I got mine on rock auto, I think it was $38? IIRC Here is a part #DORMAN 620951
I have a similar radiator and use a chevy HHR fan, pulls a lot of air and cools my 340 pretty good. The only downside I had, like someone mentioned, was not enough air flow through the engine compartment when its hot out. I have the stock hood with no scoop so hot air has no where to go, I put some rubber flaps on the shroud and cut holes for increased air flow, seems to have helped. I got mine on rock auto, I think it was $38? IIRC Here is a part #DORMAN 620951