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Problem is, I need a "pusher" fan, because there is not enough room between the radiator and motor.



At a recent show, I saw a car that had two smaller "puller" electric fans, mounted side by side (on either side of the pulley, where the fan would normally be mounted). There wasn't enough room between the pulley and the radiator for a single electric fan. I don't know how effective it would be, but it's another option.