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Old 07-20-2010, 04:04 PM   #5
FlounderGDI
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Join Date: Sep 2009
Location: Lafayette, Indiana
Posts: 339
Re: Flex Fan vs Clutch Fan

I was just told by my engine builder the other day that he always recommends the clutch fan. He was telling me at the higher RPMs that the flex fan blades flatten out and quit pulling air and essentially block the air from moving through the radiator.
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1969 CST/10 "GreenAndWhite"
1974 Nova (SOLD... End of an Era)
2000 Impala (RIP)
2008 Malibu

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