the key there is the electric water pump,,,,I looked through hundreds of fan, rad combo's and could not find any fans ( single or double) that would fit my 383 in a duster 3 5/8 " clearance from the pully to the rad. There was a few that would work as a pusher but I didnt like that option. I went with a 15 in puller with a built in shroud on the left side of the fan ( to keep away from the pully) and a 12 pusher on the right side with a built in shroud, but havnt given it a real try out yet but it looks good lol. good luck