Clutch fan options on my 340?

Just did a quick measurement. Im running a one inch spacer with my fan now. Fan is pretty much centered with the fan shroud, half in half out. The 2947 is 1.09 inches from flange to where the fan mounts, so assuming the 5 blade fan is the same exact as the 6 i should retain proper fan placement. Also the unit is just shy of 2 3/4” overall length and should put the front of the clutch right at a inch away from the radiator. Sounds like a perfect setup right?