I'm putting the final touches on a 351C this weekend and plan to drop it in the ol' mach some evening this week.
It originally had the "X" style 4 blade fan (on the water pump). I found a 5 blade flex-fan and plan to put that on instead.
My question is, I noticed that the blades are not evenly spaced. Is there a certain method for installing this fan? I'm concerned that this 5 blade style might be balanced somehow, because I'm not sure why the blades are offset and not evenly spaced, (unequal number of degrees between each blade).
I would greatly appreciate it if someone enlightened me on this design.
Thanks, Dave