Electric Fan Selection - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Blue85 · 05-14-2006, 11:11 PM

Thinkin off installing electric fans on my 71 how many cfm do i need? what diameter? or should i just go to the junkyard and pull one off of a wreck?

Mudder · 05-14-2006, 11:13 PM

I have a single aluminum and it draws about 2950. I dont know if you will find one that will draw more as per the salseman at Jegs.

I did get a shroud from Wes.

Rokcrln · 05-15-2006, 07:28 AM

For all the hot rods and 4x4 buggys I built we always use 16" spal fans. They pull between 24 and 2800 cfm's and are only 3 1/4" think. But for my 71 PU I have a duel unit off a newer camaro that looks like it was made for our radiators. Also the cool part is you can hook each fan up to its own thermo switch so the firts one turns on at say 160* and th esecond one kicks in at 200* or just when your AC is on. I have not tried it on my truck yet but I did run one on a 92 5.0 road racing mustange i built a few years ago and unless the AC was on that second fan never had to kick in.

Kevin
LFD Inc.

jakeslim · 05-15-2006, 08:58 AM

pull one from a yard. I pulled one from a t-bird(super) and it fit perfectly inside the stock fan shroud. It is actually mounted to the shroud. Leaves that stock look in the engine.

this is in my 77k5 with a 383 and keeps it running cool.

farside847 · 05-15-2006, 11:11 AM

I used a single 16 inch "black magic" kit for my stock 307. Faster engines would need more cooling, but it works great for mine! Here is the link from when I did it. http://67-72chevytrucks.com/vboard/s...d.php?t=187724

Deuce · 05-15-2006, 12:05 PM

I'm running a dual electric fan set-up. A junkyard special.

TugOwar · 05-15-2006, 12:30 PM

Quote:

Originally Posted by Deuce

I'm running a dual electric fan set-up. A junkyard special.

What donor vehicle was it Deuce?

lloyd k · 05-16-2006, 09:49 PM

ford windstars i think

kaycee · 05-17-2006, 09:31 AM

I have been wondering if it would be better to run fan snug against rad. or pull it back some like at the outer edge of shroud?I am running a single (16")fan I dson't like the plastic things that go through the rad to hold it on but got to thinking (scary) that it might tend to pull more air if it sat back that extra 5 or so inches and use the shroud more like a funnell. any comments on this .

raidermanny · 05-17-2006, 08:51 PM

I don't know about junkyard finds but I love this setup I got from Wes.

**VetteVet** · 05-17-2006, 10:37 PM

Here's an old one from the FAQS,
http://67-72chevytrucks.com/vboard/s...ad.php?t=50085

Blue85 · 05-17-2006, 10:48 PM

Question for Mudder 67 and raidermanny, Who's Wes?

BobbyK · 05-18-2006, 12:23 AM

This is WES.
He owns the business in the link below.
http://www.classicheartbeat.com/

5150 · 05-18-2006, 07:24 AM

I'm interested in this also. Was going to go with the Altima idea off the FAQ boards, but want to see the Thunderbird setup first.

76bonanza · 05-18-2006, 07:48 AM

raidermanny you like the setup from wes? I am going that route soon was it easy to install? Cool the engine good? One question were does the heat sensor go? And what temp do you have it set at?

Thanks

5150 · 05-20-2006, 03:06 PM

ttt still waiting

webbes · 05-20-2006, 04:29 PM

I got a dual setup off of an caprice

5150 · 05-20-2006, 04:30 PM

You got pics? I need pics of these setups. Just need a visual. Thanks

LUV2XCLR8 · 05-20-2006, 06:02 PM

Interested in this info also, right now considering the set-up Asa has (See_ten)

_Dick_ · 05-20-2006, 06:47 PM

if ones good 3 is great laffin there is one for the motor With a dial control
WINTER and SUMMER use laffin plus 2 up front for Florida summers and AC

**guyryan100** · 05-20-2006, 09:53 PM

I put in the Nissan fans and am pleased with them. They're a perfect fit.

QKENUF4U · 05-20-2006, 09:57 PM

DICK- what truck is that ?
GUY- which NISSAN ?

Blue85 · 05-20-2006, 11:50 PM

Dick, What fuekie setup are u using in the pic?

05-14-2006, 11:11 PM	#1
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Electric Fan Selection Thinkin off installing electric fans on my 71 how many cfm do i need? what diameter? or should i just go to the junkyard and pull one off of a wreck? __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

05-14-2006, 11:13 PM	#2
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Re: Electric Fan Selection I have a single aluminum and it draws about 2950. I dont know if you will find one that will draw more as per the salseman at Jegs. I did get a shroud from Wes. Last edited by Mudder; 05-14-2006 at 11:14 PM.

05-15-2006, 07:28 AM	#3
Rokcrln Senior Member Join Date: Jul 2005 Location: Winters Ca. 95694 Posts: 4,843	Re: Electric Fan Selection For all the hot rods and 4x4 buggys I built we always use 16" spal fans. They pull between 24 and 2800 cfm's and are only 3 1/4" think. But for my 71 PU I have a duel unit off a newer camaro that looks like it was made for our radiators. Also the cool part is you can hook each fan up to its own thermo switch so the firts one turns on at say 160* and th esecond one kicks in at 200* or just when your AC is on. I have not tried it on my truck yet but I did run one on a 92 5.0 road racing mustange i built a few years ago and unless the AC was on that second fan never had to kick in. Kevin LFD Inc.

05-15-2006, 08:58 AM	#4
jakeslim Premium Level Member Join Date: Aug 2004 Location: Northern CA Posts: 829	Re: Electric Fan Selection pull one from a yard. I pulled one from a t-bird(super) and it fit perfectly inside the stock fan shroud. It is actually mounted to the shroud. Leaves that stock look in the engine. this is in my 77k5 with a 383 and keeps it running cool. __________________ 69 K5 CST stock- 350, 4speed 77 K5 - 383, auto, 6" lift, D60 front, 14b rear, 39" tsl's,

05-15-2006, 11:11 AM	#5
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Re: Electric Fan Selection I used a single 16 inch "black magic" kit for my stock 307. Faster engines would need more cooling, but it works great for mine! Here is the link from when I did it. http://67-72chevytrucks.com/vboard/s...d.php?t=187724 __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

05-15-2006, 12:05 PM	#6
Deuce Registered User Join Date: Apr 2004 Location: Calgary, Alberta,Canada Posts: 1,595	Re: Electric Fan Selection I'm running a dual electric fan set-up. A junkyard special. __________________ I know what your thinking.......I have ESPN. Sometimes it's easier to do things the hard way. Fesler Built 1968 Chevy C10....Must resist the urge to mess with it!!

05-16-2006, 09:49 PM	#8
lloyd k Registered User Join Date: Feb 2004 Location: columbus,ohio Posts: 201	Re: Electric Fan Selection ford windstars i think __________________ 67 swb gmc,big block cadillac powered,400 turbo,2.73 ratio and disc brakes-basically a frankenstein of many parts-

05-17-2006, 09:31 AM	#9
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,446	Re: Electric Fan Selection I have been wondering if it would be better to run fan snug against rad. or pull it back some like at the outer edge of shroud?I am running a single (16")fan I dson't like the plastic things that go through the rad to hold it on but got to thinking (scary) that it might tend to pull more air if it sat back that extra 5 or so inches and use the shroud more like a funnell. any comments on this . __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

05-17-2006, 08:51 PM	#10
raidermanny Senior Member Join Date: Dec 2004 Location: Fremont, Ca Posts: 260	Re: Electric Fan Selection I don't know about junkyard finds but I love this setup I got from Wes.

05-17-2006, 10:37 PM	#11
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,715	Re: Electric Fan Selection Here's an old one from the FAQS, http://67-72chevytrucks.com/vboard/s...ad.php?t=50085 __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.

05-17-2006, 10:48 PM	#12
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Re: Electric Fan Selection Question for Mudder 67 and raidermanny, Who's Wes? __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

05-18-2006, 12:23 AM	#13
BobbyK Registered User Join Date: May 2000 Location: Petrolia,Ontario,Canada but working in Port Huron,Mi. Posts: 1,771	Re: Electric Fan Selection This is WES. He owns the business in the link below. http://www.classicheartbeat.com/ __________________ 71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE

05-18-2006, 07:24 AM	#14
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: Electric Fan Selection I'm interested in this also. Was going to go with the Altima idea off the FAQ boards, but want to see the Thunderbird setup first. __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

05-18-2006, 07:48 AM	#15
76bonanza Senior Member Join Date: Mar 2003 Location: St robert Mo Posts: 2,001	Re: Electric Fan Selection raidermanny you like the setup from wes? I am going that route soon was it easy to install? Cool the engine good? One question were does the heat sensor go? And what temp do you have it set at? Thanks __________________ 1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO

05-20-2006, 03:06 PM	#16
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: Electric Fan Selection ttt still waiting __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4



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05-20-2006, 04:29 PM	#17
webbes Registered User Join Date: Oct 2005 Location: ILL. Posts: 129	Re: Electric Fan Selection I got a dual setup off of an caprice

05-20-2006, 04:30 PM	#18
5150 C10 Club Tennessee Join Date: Mar 2003 Location: White House, TN 37188 Posts: 8,281	Re: Electric Fan Selection You got pics? I need pics of these setups. Just need a visual. Thanks __________________ Bryan www.gmtruckshow.com Project "Andes"-Halen's First Truck Project: Patina Burb for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Romans 13:4

05-20-2006, 06:02 PM	#19
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,482	Re: Electric Fan Selection Interested in this info also, right now considering the set-up Asa has (See_ten) __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T

05-20-2006, 06:47 PM	#20
_Dick_ PROUD TO BE A MEMBER Join Date: Sep 2005 Location: Jax Florida Posts: 234	Re: Electric Fan Selection if ones good 3 is great laffin there is one for the motor With a dial control WINTER and SUMMER use laffin plus 2 up front for Florida summers and AC Attached Images

05-20-2006, 09:53 PM	#21
guyryan100 Registered User Join Date: Sep 2001 Location: Cumming, GA Posts: 481	Re: Electric Fan Selection I put in the Nissan fans and am pleased with them. They're a perfect fit.

05-20-2006, 09:57 PM	#22
QKENUF4U Senior Member Join Date: Jan 2005 Location: SUNNY WARM BIKE RIDING COTTONWOOD ARIZONA Posts: 2,097	Re: Electric Fan Selection DICK- what truck is that ? GUY- which NISSAN ?

05-20-2006, 11:50 PM	#23
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	Re: Electric Fan Selection Dick, What fuekie setup are u using in the pic? __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

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