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Old 08-04-2011, 11:19 PM   #1
FLcustom10
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Should I get a bigger fan?

I have the original 4 blade fan. 307 small block. As long as I have it torn apart should I get a bigger fan? If so can you advise what I should get?
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Old 08-04-2011, 11:22 PM   #2
hbchevy
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Re: Should I get a bigger fan?

You say its the original? Of there is nothing wrong with it I would leave it. Why were you thinking of a bigger one?
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Old 08-04-2011, 11:34 PM   #3
FLcustom10
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Re: Should I get a bigger fan?

There's nothing wrong with it. It just looks small now that I have everything painted up and looking pretty, and I'm reading posts about people having trouble with their engine running hot so I thought I'd ask for advice while it's easy to get to.
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Old 08-05-2011, 12:25 AM   #4
Shyguy
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Re: Should I get a bigger fan?

The fan on my stock 350 was a 4 blade one without a clutch. It worked great and kept the engine cool just fine.
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Old 08-05-2011, 01:10 AM   #5
Stocker
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Re: Should I get a bigger fan?

And now, an opposing opinion. Fixed-blade fans are dead reliable, but I have never liked them. They pull air all the time, which also means they are noisy and rob power. A clutch fan pulls more air at idle and low engine speeds, and releases (for the most part) when not needed.

I'd take measurements and hit up junkyards for a clutch fan from a full size late-model GM car or truck. In fact, I have done exactly that! .02
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Old 08-05-2011, 07:15 AM   #6
cdowns
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Re: Should I get a bigger fan?

i've always liked the stock 7blade fans with the clutch// always did great job keeping my AC equipped trucks cool in the hottest weater even heavily loaded in stopngo traffic conditions never an overheating problem in near 100degree days
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