John,
I've seen owners install brackets (flat stock) to the radiators that allowed them to then attach modern, flat motor style fans to their radiators by attaching them to the brackets.
Spal manufactures an 11" high performance fan rated at 1390 cfm, 12.5 amps. The pusher version of that fan has a part number of VA03-AP6-37S. I have purchased 2 of the puller versions of this fan for #6018.
cowboy from hell
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