Big block fan clutch

I picked up these two items today in hoping that it would work on my 71 Dart with a 383/727 auto using a Northern Radiator model #205197, but the fan clutch is so close to the radiator maybe an 1/8" to 3/16 clearance that I would not feel comfortable running this set up. I'm going to have to start looking at electric fan set up.
can the radiator be moved forward
on my dart I removed the radiator mounts, placed the radiator where I wanted it, then re-soldered it

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