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07-14-2018, 06:54 PM | #1 |
Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Finding the right 7 blade clutch fan
I've had a hard enough time trying to find a fan with 6-7 metal blade fan that take the clutch type.
This is what i found and some of you want like it.Trying to find a metal 6-7 blade fan that takes the clutch type for chevy trucks are hard.I'm still running the old motors.With the factory Fan and shroud and a 3 or 4 core copper and brass radiators. I found out that if you use the 1974-6 extreme duty 454 fan clutch it will work on almost any fan from the big 3, dodge ford or chevy.This fan clutch has slots where it makes it easier to put your fan and clutch on your short water pump. Now here is the kicker The fans are hard to find.are shrouds will only take up to a 16 inch.Most fans are 18 inches.I found a dodge 7 blade fan that Fits are shrouds and are clutches and are 15.5 inches wide and are 7 blade metal fans.If you having trouble cooling you old truck. You done a flush or a rod out with in the last year and know you radiator is clear of junk.Then this fan and clutch combo will work amazing in your set up. I always say this A working heater if your best friend in the summer time.Its the one thing from blowing a head gasket and making it home on a 90-- 115 degree day |
07-15-2018, 11:09 AM | #2 |
Registered User
Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,211
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Re: Finding the right 7 blade clutch fan
Check out the Truck and Car Shop in Orange, Ca. I just recently bought a new 18" 7 blade fan with a fan clutch assembly there. They also have the shrouds if you need one. Pricing was not bad and you can drive there and pick it, saving on shipping. What ever you do, make sure you use the pilot bushing supplied with the clutch fan. Ask me how I know
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Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
07-15-2018, 03:36 PM | #3 |
Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: Finding the right 7 blade clutch fan
^ this.
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07-15-2018, 07:59 PM | #4 |
Active Member
Join Date: Jun 2016
Location: Salida, CA
Posts: 177
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Re: Finding the right 7 blade clutch fan
I got this one from Summit based on several people here on the board using them:
https://www.summitracing.com/parts/hda-3618 With this clutch: https://www.summitracing.com/parts/hda-2705
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David Larsen 1970 Chevrolet C-10 |
07-15-2018, 10:08 PM | #5 | |
Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,366
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Re: Finding the right 7 blade clutch fan
Quote:
However, with a short water pump and original type power steering pump, we noticed that the rear edge of the fan blade was very close to hitting the nut that holds the pulley on the PS pump. So we made a slight change and went with a 2706 clutch which moves the fan blade forward about 1/4" compared to the 2705. |
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07-15-2018, 11:06 PM | #6 |
Registered User
Join Date: Apr 2018
Location: Penngrove, CA
Posts: 697
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Re: Finding the right 7 blade clutch fan
Derale? I got a 7 blade non clutch from them that works great. Might have what you’re after...
Edit: https://derale.com/products/belt-dri...black-1-detail Looks like it’s only got 6 blades... but I’m sure it’ll do far better than your stocker. Comes in 17-20” sizes
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"Sweet Pea" 1975 Cheyenne 20 http://67-72chevytrucks.com/vboard/s...00#post8477900 "Bourbon" 1975 Suburban ScottsdaleSOLD https://67-72chevytrucks.com/vboard/...49#post8769049 ”Otis” 1970 C10 SWB -SOLD http://67-72chevytrucks.com/vboard/s...d.php?t=762766 ”Chebby” 1962 Impala LS/TKO-500 http://www.pro-touring.com/threads/1...2-Impala-Build |
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