Electric fan for 408?

I am trying to figure out a decent fan and relay combo for my 408 stroker. I have a large core 73 a body radiator with a touch less than 3 inch clearance to the pump pulley. There is not enough room to run the shortest clutch fan sold. I have one and total height with fan blades is 3 inch.
What have you used that will effectively cool a 500 hp stroker? I need everything; wiring, thermo switch kits, fans,etc.