[72SB]

This thread inspired me to take a closer look at my 4-blade fixed fan on my 72 I6. I have a 5-blade asymmetrical 18" fan and clutch I had on my 327. Its also a 18" fan.

The stock 4 blade, 18", has a 3" spacer. If I put the fan clutch and 5 blade on I would need a 1 1/2" spacer to put the fan in the same spot as the 4 blade which is about 2 1/2" (center) from the 4 blade to radiator.....but the fan clutch sticks out 1 1/2" in front of the fan making it about 1", actually less, away from radiator. seems fairly close to radiator so likely coil opens sooner, IDK. I could use a 1" spacer giving more room from front of fan clutch to radiator which sets the fam 1/2" further away than it is now. Not likely a issue as no shroud is involved so the 1/2 in/out of shroud thing does not apply.

Anyway just looking at what spare parts I have and other than buying a spacer and bolts I can put it on but like mentioned above..."If it ain't broke"

I will use the 5 blade with fan clutch if I ever drop a V8 in though

Anyway, sharing some mockup 411 I just did