Author Topic: Radiator fan diameter for 21 inch wide x 18 tall radiator  (Read 1192 times)

Offline femtnmax

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Radiator fan diameter for 21 inch wide x 18 tall radiator
« on: June 27, 2010 - 10:32:09 PM »
I have two fans, both have clutches, both are 7 blade.  I have the higher flow water pump with 7 impellers if I remember right.  The car is non a/c small block, 10.5 compression, with aluminum heads.   I plan to run a 180 degree thermostat, and factory radiator overflow tank.

One fan is 18 inch diameter, and the blades are straight.  The other fan is 19 1/2 inch diameter, and the blade tips curve away from the water pump side of the fan.
The large diameter fan seems to big for the size of radiator.   Who sells the correct shroud to fit the radiator and which fan diameter is correct for the shroud?
Phil




Offline Chryco Psycho

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Re: Radiator fan diameter for 21 inch wide x 18 tall radiator
« Reply #1 on: June 29, 2010 - 02:38:38 AM »
18 " diameter is typical
 not sure who has a repro 22" shroud

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