Fan setup for 1973 340 in 1965 dart

Trying to figure out what fan to run on my setup. It’s a 1973 340 with the matching radiator going in a 1965 dart. I know I have to modify the mounts a little to make the radiator work but not sure what fan will fit with this setup since the radiator is closer to the engine than the stock 273. Any pics would be appreciated.