My son's fan blades are very close to the radiator.
Which made putting on a new 1/2" fan belt very
hard when he first got the truck when it still had
the 46 engine.

I would not bend radiator fans for fear of throwing
the fan out of balance. Fan out of balance - water
pump bearing fail - fan becomes airborne - radiator
gets a new hole. Also increasing the distance between
the fan and the radiator may lower the ability to
pull enough air through the radiator - then overheat.
Jeffrey