318 Flex-A-Lite or Clutch setup

Originally the Hayden 2765 Jaguar clutch fan was the hot ticket. It was the thinnest clutch fan you could get. But then people discovered that it wasn't heavy duty enough, and people's car were running hot with them. I still have one on my car that I need to swap out. The Hayden 2947 is the heavy duty model, with the same thin profile as the Jag clutch.
As mentioned, installing one is like a game of finger hockey. It takes patience, but can be done. I was able to install mine with the correct bolts. Best thing to do would be to get your radiator installed, and see what kind clearance you are working with.