I have a 1953 Chevy 3100 pickup and I installed a 1954 261 engine with T-5 transmission. I finally got around to installing the radiator and I noticed that the fan is extremely close to the radiator.

Does anyone know how close the fan is supposed to be? Or is it simply, if the fan rotates without hitting anything you're good to go?

I installed an a/c compressor, power steering pump and alternator. I modified an aftermarket aluminum 6 blade fan to fit my water pump and used spacers to move the fan toward the radiator to avoid hitting the a/c compressor. Then I had to move the radiator down in the support cradle so that the fan blade didn't hit the lower portion of the radiator. Now the fan contact area is the main fin area.