Orin in the second last pic it looks like the fan blade is mounted directly to your pulley.
Quote from Grfishmaker;
Ok kpm, here's my request to you. In your travels, if you can; could you try to locate a 5 blade fan for my wide gauge? It's for a 300 Ford. I remember you telling me the difference in cooling between a 4 and 5 blade fan. I was told by Orin to make sure it is a ridgid fan, not a flex fan and not a clutch fan.
Orin by mounting the fan this way, I guess it keeps your engine running cooler ?? Do you know @ what temp the engine will run at with this setup ?? I watched a show last weekend showing an electric fan mounted to the outside of the rad. They claim it pushes more cold air to the motor than pulling from the inside. Any thoughts on that ??
PS. My engine has a 5 blade fan now, but it won't fit to the pulley as it has a different bolt pattern. Any tips for this old trucker ??
OT.