The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-03-2016, 12:37 PM   #1
Smitty
Senior Member
 
Smitty's Avatar
 
Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,108
Electric Fans

What are some of the options that have been used that don't break the bank. And how did you deal with the shroud issue. All input is appreciated. Going with a serpentine belt setup from a donor '93 350 and don't think there is clearance to use the stock fan. Especially with the stock shroud. Thanks! All the information I have been getting to my questions of late have been extremely helpful.
__________________
Smitty
'71 Short Fleetside
Spring Valley, Ca.
Smitty is offline   Reply With Quote
Old 12-03-2016, 01:39 PM   #2
74baggedbug
Registered User
 
Join Date: Oct 2011
Location: Houston tx
Posts: 699
Re: Electric Fans

In for info!!
74baggedbug is offline   Reply With Quote
Old 12-03-2016, 01:59 PM   #3
B. W.
Registered User
 
B. W.'s Avatar
 
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
Re: Electric Fans

I know you asked about an electric fan but, i'm running the stock serp belt setup from a 95 (same basic setup). I went with a different clutch & 18" fan to fit the OE shroud. The OE fan for my 95 donor was 19" (too large for shroud)
Truck is 4x4, the engine is set back further than a 2wd but it also has a deeper shroud. Believe this setup would work for 2wd also. will measure OAL of setup from the block if you would like (can't until Wed. - out of state)
I have run elec fans but I feel the stock shroud, engine driven fan / clutch setup performs better.

fan clutch - CQ p/n 215168 (1/8" longer than original clutch)
fan - Derale p/n 17918 18" reverse rotation (for serp belt setup)
Attached Images
 
B. W. is offline   Reply With Quote
Old 12-03-2016, 10:53 PM   #4
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,372
Re: Electric Fans

-
I used a fan setup from a 2002 Toyota Camry on the '67 Panel Truck. Just a minor amount of trimming and made two small "Z" brackets to secure the top to the radiator frame. One of the bottom mounting holes lined up with a hole in the lower radiator frame and I drilled a hole in the frame on the other side to line up with the stock hole in the fan assembly. I used carriage bolts and bolted it all the way through the frame. Just go easy when you tighten them up. Pretty easy overall.... No shroud needed with this setup.

LockDoc
Attached Images
 
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-

Last edited by LockDoc; 12-05-2016 at 12:51 PM.
LockDoc is offline   Reply With Quote
Old 12-03-2016, 11:16 PM   #5
ratty69
Registered User
 
Join Date: Jun 2016
Location: Vancouver B.C.
Posts: 206
Re: Electric Fans

Quote:
Originally Posted by LockDoc View Post
-
I used a fan setup from a 2002 Toyota Camry...LockDoc
That looks really good. I'll have to keep my eyes peeled for one of those at the wreckers.

BTW, was that from a 4 or a v6?
ratty69 is offline   Reply With Quote
Old 12-03-2016, 11:45 PM   #6
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,372
Re: Electric Fans

Quote:
Originally Posted by ratty69 View Post
That looks really good. I'll have to keep my eyes peeled for one of those at the wreckers.

BTW, was that from a 4 or a v6?
Don't know. It was out of the car and laying in the back seat of a Jeep. Looked up the application from the numbers on it but it didn't specify 4 or 6.

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 12-03-2016, 11:56 PM   #7
Tquillen
Registered User
 
Join Date: Mar 2016
Location: Athens, AL
Posts: 80
Re: Electric Fans

I used a serpentine setup with a reverse rotation clutch fan setup. I was able to retain the factory four row radiator along with the stock shroud; I used a Derale fan blade I bought from Summit Racing, and a fan clutch from a '93 truck iirc. If you want, I can look up the part numbers for you, and get pictures. The only mod I had to make was to cut about an inch off the fan shroud, as it was a little too long. The serpentine setup is really nice, and the clutch fan is a great setup.
Tquillen is offline   Reply With Quote
Old 12-04-2016, 10:36 AM   #8
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
Talking Re: Electric Fans

Dual Camaro fan setup. Works great for my LS6.0 it runs 180* all the time. 3 years and no problems at all. Fans kick on if AC is turned on and I wired a micro switch to cut them off at 25MPH they are not needed while at speed.



__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 12-04-2016, 11:01 AM   #9
coreyjhen
Registered User
 
Join Date: Nov 2016
Location: Albuquerque, NM
Posts: 110
Re: Electric Fans

Quote:
Originally Posted by LockDoc View Post
-
I used a fan setup from a 2002 Toyota Camry on the '67 Panel Truck. Just a minor amount of trimming and made two small "L" brackets to secure the top to the radiator frame. One of the bottom mounting holes lined up with a hole in the lower radiator frame and I drilled a hole in the frame on the other side to line up with the stock hole in the fan assembly. I used carriage bolts and bolted it all the way through the frame. Just go easy when you tighten them up. Pretty easy overall.... No shroud needed with this setup.

LockDoc
That really looks slick. How do you have them wired (progressive or simultaneous)? What do the "L" brackets on top attach to?
coreyjhen is offline   Reply With Quote
Old 12-04-2016, 11:53 AM   #10
Smitty
Senior Member
 
Smitty's Avatar
 
Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,108
Re: Electric Fans

Great information as usual. Will have to sort it out as things progress. The restoration shop has the rust handled and is now starting on the dents. Thanks again.
__________________
Smitty
'71 Short Fleetside
Spring Valley, Ca.
Smitty is offline   Reply With Quote
Old 12-04-2016, 12:43 PM   #11
Smitty
Senior Member
 
Smitty's Avatar
 
Join Date: Dec 1999
Location: Spring Valley, Ca.
Posts: 1,108
Re: Electric Fans

Lock Doc are there any other components I need to get when I pull the fan set-up.

B.W. is the clutch and fan that you are citing stock to this serpentine setup? The one I pulled looks exactly like the unit you show in the picture.

Thanks again
Smitty
__________________
Smitty
'71 Short Fleetside
Spring Valley, Ca.
Smitty is offline   Reply With Quote
Old 12-04-2016, 09:02 PM   #12
hayhauler71
Registered User
 
hayhauler71's Avatar
 
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
Re: Electric Fans

Flexalite and only draws 21 amps
Attached Images
  
__________________
Fuzzy
hayhauler71 is offline   Reply With Quote
Old 12-05-2016, 02:54 AM   #13
franks72
Junior Member
 
franks72's Avatar
 
Join Date: Mar 2005
Location: Wilmington DE
Posts: 218
Re: Electric Fans

I did this back in 2008 and I have never had a problem with this set up. I drive and race my truck a lot in the summer. 100 Deg day no problem. I installed it in my big block fan shroud and used a painless temp relay on at 185 deg off at 170 deg. if I did it again I would put the tab through a slot in the bottom of the shroud insted of the top.. live and learn..

Jeep Grand Cherokee Radiator Cooling Fan Assembly for L6 4.0L
Make: Jeep / Model: Grand Cherokee/ Year: 2000
Price: $56.60
Item: AM-21731749




__________________
72 cheyenne super BB402 TH400 Air Tack Tilt Posi P/S P/B AM/FM 12.96 @ 101.82 mph 60ft 1.82
12.39 @111.33 With a 180 shot nos

69 Camaro RS http://s94.photobucket.com/albums/l117/fdelcoglin/

email fdelcoglin@hotmail.com
franks72 is offline   Reply With Quote
Old 12-05-2016, 07:31 AM   #14
Overdriven
Registered User
 
Join Date: Mar 2016
Location: Long Island NY
Posts: 598
Re: Electric Fans

Pretty neat 2 speed fan and controller setup, super cheap too.
https://m.youtube.com/watch?v=CcAjpykGveM

If you want a cheap electric fan setup go with an oem fan and possibly shroud. Don't worry if the shroud doesn't fit exactly, they're just plastic. Cut it up, extend it with some fiberglass, or shorten it and epoxy it back together. With a little sanding and some paint it won't be an eyesore either.

The harder part is finding cheap oem fan relays/controllers. The Volvo one in the video above is a good candidate for 2 speed fans. Anyone know of one for using 2 single speed fans?
Overdriven is offline   Reply With Quote
Old 12-05-2016, 11:36 AM   #15
B. W.
Registered User
 
B. W.'s Avatar
 
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
Re: Electric Fans

Quote:
Originally Posted by Smitty View Post
Lock Doc are there any other components I need to get when I pull the fan set-up.

B.W. is the clutch and fan that you are citing stock to this serpentine setup? The one I pulled looks exactly like the unit you show in the picture.

Thanks again
Smitty
No, the fan is 18" the stock fan is 19" & will not clear the shroud. I needed the clutch because the new fan had a different bolt pattern
B. W. is offline   Reply With Quote
Old 12-05-2016, 12:49 PM   #16
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,372
Re: Electric Fans

Quote:
Originally Posted by coreyjhen View Post
That really looks slick. How do you have them wired (progressive or simultaneous)? What do the "L" brackets on top attach to?
Yes, progressive through the PCM/ECM with a separate relay & fuse for each one. I have a Camaro LS1 5.7 engine in the Panel Truck. The top brackets just fasten to the top radiator frame. (see pics) I guess they would be more of a "Z" bracket than an "L" bracket. I will change that in my first post.

Quote:
Originally Posted by Smitty View Post
Lock Doc are there any other components I need to get when I pull the fan set-up.

Thanks again
Smitty
The relays. I didn't use the stock relays because I already had some and they wanted quite a bit more for the fan if the relays were with it.

LockDoc
Attached Images
  
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 12-05-2016, 01:05 PM   #17
snailhouse_projects
Registered User
 
Join Date: Jan 2014
Location: New Mexico/ Faaaar west Texas
Posts: 27
Re: Electric Fans

good info here!
this might sound like a dumb question, but here goes..... when I go electric fan, what all needs to be done to delete the clutch fan so I can free up space?

thanks fellas

Barnabie
__________________
69' GMC LongBed- 350/4 speed "GeeMack"
72' C10 Longbed- 355/400 combo cut front springs and bagged rear on 18x10 GSI Drop member front and rear coming soon
00' Tacoma- Solid axle twin cases, 5.13's, ARBs on 37s
08' Roadking, 99' Softail, 81' FLH, 76' Superglide
snailhouse_projects is offline   Reply With Quote
Old 12-05-2016, 03:26 PM   #18
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
Talking Re: Electric Fans

Un bolt it and put short bolts back in the place of the long ones.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 12-05-2016, 03:44 PM   #19
GASoline71
"I ain't nobody, dork."
 
GASoline71's Avatar
 
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,921
Re: Electric Fans

Quote:
Originally Posted by franks72 View Post
I did this back in 2008 and I have never had a problem with this set up. I drive and race my truck a lot in the summer. 100 Deg day no problem. I installed it in my big block fan shroud and used a painless temp relay on at 185 deg off at 170 deg. if I did it again I would put the tab through a slot in the bottom of the shroud insted of the top.. live and learn..

Jeep Grand Cherokee Radiator Cooling Fan Assembly for L6 4.0L
Make: Jeep / Model: Grand Cherokee/ Year: 2000
Price: $56.60
Item: AM-21731749
Very clean setup. I like it a lot. I'm just getting to where I'm putting my rig back together and have been considering an electric fan setup. The price is right too.

Did you use the painless temp relay kit with the 30 amp breaker? Or just the relay itself wired to the unit.

By chance did you put an "over ride" switch in line so you could turn the fan on manually if you want to?

Gary
__________________
'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.

Last edited by GASoline71; 12-05-2016 at 03:58 PM.
GASoline71 is offline   Reply With Quote
Old 12-05-2016, 05:53 PM   #20
BugzC10
Registered User
 
BugzC10's Avatar
 
Join Date: Oct 2012
Location: Green Valley Arizona
Posts: 1,351
Re: Electric Fans

Quote:
Originally Posted by franks72 View Post
I did this back in 2008 and I have never had a problem with this set up. I drive and race my truck a lot in the summer. 100 Deg day no problem. I installed it in my big block fan shroud and used a painless temp relay on at 185 deg off at 170 deg. if I did it again I would put the tab through a slot in the bottom of the shroud insted of the top.. live and learn..

Jeep Grand Cherokee Radiator Cooling Fan Assembly for L6 4.0L
Make: Jeep / Model: Grand Cherokee/ Year: 2000
Price: $56.60
Item: AM-21731749




I also did the "Jeep" fan conversion. Works great.
Attached Images
 
__________________
1970 C10 Short Stepper with 71/72 front clip.
BugzC10 is offline   Reply With Quote
Old 12-05-2016, 07:10 PM   #21
74baggedbug
Registered User
 
Join Date: Oct 2011
Location: Houston tx
Posts: 699
Re: Electric Fans

Quote:
Originally Posted by franks72 View Post
I did this back in 2008 and I have never had a problem with this set up. I drive and race my truck a lot in the summer. 100 Deg day no problem. I installed it in my big block fan shroud and used a painless temp relay on at 185 deg off at 170 deg. if I did it again I would put the tab through a slot in the bottom of the shroud insted of the top.. live and learn..

Jeep Grand Cherokee Radiator Cooling Fan Assembly for L6 4.0L
Make: Jeep / Model: Grand Cherokee/ Year: 2000
Price: $56.60
Item: AM-21731749










Is that the stock 67-72 C10 shroud?
74baggedbug is offline   Reply With Quote
Old 12-09-2016, 05:13 PM   #22
70short
Registered User
 
Join Date: Sep 2003
Location: Boise ID
Posts: 609
Re: Electric Fans

OK so yes that looks like the factory shroud which is 20 opening. So those mount tabs must stick out quite a ways. Anything else I should know because I'm going to do this mod. I really like it.
__________________
"72" Red CORVETTE 4-speed 350
"70" Chevy Short Bed early stages of resto.
Edel 600 cfm carb
Weiand Stealth Intake
HEI
shorty Headers
4/2 Drop
295 50R 15 TOYO on 10 inch wide corvette rally rims at all 4 corners.
"CHEVY RULES"
70short is offline   Reply With Quote
Old 12-09-2016, 05:47 PM   #23
BugzC10
Registered User
 
BugzC10's Avatar
 
Join Date: Oct 2012
Location: Green Valley Arizona
Posts: 1,351
Re: Electric Fans

Quote:
Originally Posted by 70short View Post
OK so yes that looks like the factory shroud which is 20 opening. So those mount tabs must stick out quite a ways. Anything else I should know because I'm going to do this mod. I really like it.
Check out this tread for the Jeep electric fan conversion

http://67-72chevytrucks.com/vboard/s...d.php?t=254617
__________________
1970 C10 Short Stepper with 71/72 front clip.
BugzC10 is offline   Reply With Quote
Old 12-09-2016, 05:59 PM   #24
weq92f
Registered User
 
weq92f's Avatar
 
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,002
Re: Electric Fans

Quote:
Originally Posted by hayhauler71 View Post
Flexalite and only draws 21 amps
Do you have a part number for that? Maybe a link?

Thanks,

-klb
__________________
67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi
07 335 sport turbo 6sp
94 Trans Am GT LT1 6sp posi -- sold after 22yrs
99 540 sport V8 6sp -- sold
73 240z L24 4sp -- given to friend
68 C10 step 350/350 3.73 open -- sold
weq92f is offline   Reply With Quote
Old 12-10-2016, 11:13 AM   #25
Oregon 1967 GMC
Registered User
 
Oregon 1967 GMC's Avatar
 
Join Date: Jan 2014
Location: Portland, Oregon
Posts: 436
Re: Electric Fans

[QUOTE=BugzC10;7791649]Check out this tread for the Jeep electric fan conversion

I really like the Jeep Electric fan setup although the prices have jumped for the fan $171.45
https://moparonlineparts.com/mop-parts/#parts

and the JEGS wiring kit has gone done $34.99
http://www.jegs.com/webapp/wcs/store...rsistYmm=false

so for around $210 and shipping it can still be done and I'm thinking about doing it this spring.
__________________
Hey man
67 GMC Short Stepside 400 small block, turbo 350. Build thread:http://67-72chevytrucks.com/vboard/s...d.php?t=650603
Oregon 1967 GMC is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:11 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com