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Radiator fan blade - more blades less heat?
https://slantsix.org/forum/viewtopic.php?t=60630
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Author:  crickhollow [ Fri Jan 06, 2017 2:53 am ]
Post subject:  Radiator fan blade - more blades less heat?

If I replace my 4 blade radiator fan with a 5, 6, or 7 blade fan will I get more engine cooling?

I have a slant 6 motor.

Author:  my5thmopar [ Fri Jan 06, 2017 6:58 am ]
Post subject: 

A fan shroud will help the most. I don't have a shroud. I installed a 7 blade or maybe it was a 6. My 64 D100 is definitely cooler. I intentionally pushed it to 65-70mph and stayed cooler than it ever has.

Author:  Old6rodder [ Fri Jan 06, 2017 8:55 am ]
Post subject: 

Short answer is yes, it will have a positive effect, at low speed.
Whether it'll be enough for your purpose is the subsequent question.

Author:  SlantSixDan [ Fri Jan 06, 2017 3:32 pm ]
Post subject: 

Question is too vague to get a helpful answer. Article to read is here (eventually you'll get to Part 5, which covers fans)

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