I've got a 72 demon with a 360 Magnum engine and a stock radiator. I want to put the popular chevy hhr fan in because it seems like it will do the trick and is also very cheap.

However, I don't believe theres going to be enough room as is. Theres about 3 1/4" clearance between the radiator and the water pump pulley bolts.

What are some ways I can gain a lot of clearance in this setup?

I could probably trim about 1/4"...maybe 1/2" off the fan shroud. Are there any short water pumps available? I'm running the LA style pump and timing cover, any differences in thickness between the Magnum and LA style timing covers and water pumps?

I would prefer not to move the radiator support as I don't have any way of welding it back together.

Any ideas?