Squirle Cage (heater core fan)
I have seen a ton of various "blower wheels" on napaonline and rock auto.
http://www.napaonline.com/Catalog/R...yword&Nty=1&Dn=0&D=blower+wheel&Dk=1&Dp=3&N=0
They usually have the size, picture, height, ccw or cw and shaft diameter. If you get some specs, I am interested too. I also was thinking of putting a volare blower and wheel in my factory air 74 duster for more blowing power, some mods required. I got volare motor and wheel from napa online and I am pretty sure that it is correct rotation but the wheel is a bit deeper and larger, motor is longer but sits deeper in the blade.
Interested to hear what you find.