340 7-blade fan rivet missing

This H code Demon was a drag car when I got it and came with the fixed fan. I figured if it worked for him, I would just leave it. Since I'm replacing it now, I'm on the fence as well with the factory radiator
Keep the factory radiator, reset the fan to a factory setup, and not have any cooling issues. If you want, swap out the fixed fan for a clutch fan that has a more aggressive fan pitch