I Think I Found My Fan

[truckster]

I'm putting a 5.7 L31 Vortec in my 72, complete with the serpentine drive setup. I've been trying to figure out what to do about a fan, since the fan on the Vortec is 19.5 inches and my fan shroud opening is slightly over 19 inches. I considered an electric fan - member 71Rat posted a really nice conversion using a Jeep fan a while back. I really wanted to stay with the clutch fan for now, and I think I finally found the solution. I noticed in the wrecking yard yesterday that the 4.3 S10 has an 11-blade plastic fan, and it measures at 18.25 inches. Hopefully it will work well - I'll keep you posted with what I learn once I get it on the road.