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Old 08-11-2018, 04:46 PM   #1
The Rocknrod
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Fan and Clutch Info

Does anyone have information on what Heavy Duty Clutch Fan I should use with a 7 blade 18 inch fan. I looked at FAQ section = zip. The Truck Shop in Orange shows them in their catalog but no manufacturers part numbers.
I'm using a stock V8 fan shroud, short water pump, AC, Automatic. I'll even have I.O.L.
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Old 08-13-2018, 09:19 AM   #2
MikeN
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Re: Fan and Clutch Info

Either the Hayden 2747 or 2797. More info here...

https://www.chevelles.com/forums/32-...an-clutch.html
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Old 08-13-2018, 09:21 AM   #3
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Re: Fan and Clutch Info

I'm using the Hayden 2747 in my 64 C10 with 350, short water pump, and 7-blade fan. I also use the exact same set up in my 65 Impala.
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Old 08-13-2018, 11:26 AM   #4
The Rocknrod
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Re: Fan and Clutch Info

Thanks Mike, good info on the severe duty too. May go that way.
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Old 08-13-2018, 02:39 PM   #5
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Re: Fan and Clutch Info

No sweat, you're welcome. Also, I got my Hayden fan clutch on Amazon. Cheapest price I could find, no tax, and free shipping to Amazon Prime members.
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Old 08-13-2018, 05:24 PM   #6
The Rocknrod
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Re: Fan and Clutch Info

Ya I joined Amazon and don't find the prices better than eBay on the same seller and I did upgrade also. So I guess it's all what system you want to buy from.
I'm thinking the 2797 is where I'm headed.
Thank you again.
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Old 08-14-2018, 09:39 AM   #7
AcampoDave
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Re: Fan and Clutch Info

Quote:
Originally Posted by The Rocknrod View Post
Ya I joined Amazon and don't find the prices better than eBay on the same seller and I did upgrade also. So I guess it's all what system you want to buy from.
I'm thinking the 2797 is where I'm headed.
Thank you again.
For the extreme duty?
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Old 08-14-2018, 09:48 AM   #8
The Rocknrod
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Re: Fan and Clutch Info

Quote:
Originally Posted by AcampoDave View Post
For the extreme duty?
Yes.
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Old 08-14-2018, 07:20 PM   #9
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Re: Fan and Clutch Info

That linked thread with posters talking about the noise it makes doesn't bother you? I use the 2747 here in central CA where we have plenty of triple digit days and have no problems even in traffic with the a/c on. Sometimes I hear the fan but not too bad.
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Old 08-14-2018, 08:44 PM   #10
The Rocknrod
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Re: Fan and Clutch Info

It wont bother me.
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Old Yesterday, 10:28 AM   #11
MikeN
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Re: Fan and Clutch Info

I used the 2797 in my 69 Chevelle with 496. I've since sold the car, but it didn't make any noise that was offensive. Drove it that way for years.
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Old Yesterday, 12:38 PM   #12
nxtruck
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Re: Fan and Clutch Info

I recently put a mechanical fan setup back on my '65 and used a 17" 6-blade fan and a Hayden 2747 clutch. This is on a mild 355 using a long pump, custom shroud, and an aluminum 4-row radiator. It does fine everywhere except for idling in gear for long periods. I ordered a 2797 clutch to replace the 2747 with and hopefully help with the heating up at idle issue I'm having.
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1966 Chevy C10 LWB, 434 sbc, TH350, 12-bolt, factory suspension, pump gas
7.02 @ 95.8, 1.45 60'
1965 Chevy C10 LWB, 350 sbc, powerglide, daily driver
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