Guys I am installing a 302 in my 57 , what size fan can I use with a Aluminum radiator with stock dimensions.
Note quit sure what you are looking for with respect to size. My personal favorite fans are the clutch fans Ford ran for many years on Factory AC cars. Space them to 3/4" from the radiator and run a shroud if possible.
I have used a 18" 7 blade Flex-Lite fan before and I have a clutch fan that will work as well. I have both if you are interested, PM me.