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#1 |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Electric fan clearance issues
I have about 4 inches between the radiator and the pulleys. The dual fan setup I have will not clear the pulleys when tight against the radiator. You guys have any advice or has anybody ran in to this issue before?
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Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#2 |
Registered User
![]() Join Date: Nov 2011
Location: enfield ct
Posts: 67
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Re: Electric fan clearance issues
Also would like to hear a solution to this what kind of radiator is that
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#3 |
Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,143
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Re: Electric fan clearance issues
Can you off set the fan slightly to clear the motors away from the pulleys?
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1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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#4 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Electric fan clearance issues
Look like that serp belt accessory drive really ate up the room. How much more space do you need? What is the distance between the radiator and the pullley bolts? If your engine is in the fwd (V-8) you might be able to move it back to the I-6 holes or modify the towers for somewhere in between. The only other option would be a set of pusher fans and with A/C that is not a good solution from where I sit as the trans. needs a large cooler too.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#5 |
Registered User
Join Date: Dec 2012
Location: Altoona Iowa
Posts: 481
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Re: Electric fan clearance issues
you may have to check on dimension of a double fan setup. there are some of those that are way more shallow than a big 15" or 18" single. Measure your clearance and I can help with the research.......I switch everything over to electric myself.
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#6 |
Registered User
Join Date: Feb 2011
Location: Crowley TX
Posts: 979
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Re: Electric fan clearance issues
i had the same problem with mine only i had a little over 3" between the radiator and fan pulley bolt,s the radiator i have is a griffin , i called them and they had a dual fan with shroud set up that worked i think it cost around $ 300.00 here,s a couple pic,s
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#7 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
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Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#8 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
__________________
Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#9 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Electric fan clearance issues
Didn't realize how big those valve covers are. Dual puller fans may be the only practicle solution. However the efficiency does decline over a single puller.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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#10 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
__________________
Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#11 |
Registered User
Join Date: Dec 2012
Location: Altoona Iowa
Posts: 481
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Re: Electric fan clearance issues
If you could squeeze it in there.....I would recommend a late 90's Lincoln Mark 8 electric fan. Only thing is it takes up about 4 inches depth and cant tell if you have that much room. If you do, the fan pulls 3600cfm by itself.....alot of hot rodders and street machines around here do this. The fans around here have gotten real hard to locate.
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#12 |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Electric fan clearance issues
I have a 383 stroker in my '69 C20. I have an aluminum radiator built by Wizard Cooling. They provided the radiator with the dual fans and shroud. I literally had an 1/8" clearance between the passenger side fan and the A/C compressor. It never hit because the engine doesn't move forward, but I wanted more clearance just to be safe. They graciously replaced that high performance fan with a medium duty fan at no cost. The replacement fan gave me 1" of clearance. I'm sorry but the pictures don't really show it too well.
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~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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#13 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
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Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#14 | |
Roto Reuter thats the name...
![]() Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
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Re: Electric fan clearance issues
Quote:
http://www.summitracing.com/parts/clp-cpuhk The lines were ordered with my March serpentine kit for my Saginaw style pump. The kit on March's website doesn't look the same though. http://marchperf.com/pg52.html#psh
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~ Dan ![]() My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232 My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394 1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt 1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project "Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977 |
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#15 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Electric fan clearance issues
use pusher fans infront of radiator
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#16 |
Registered User
Join Date: Aug 2008
Location: Lantana, TX
Posts: 419
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Re: Electric fan clearance issues
Old Air Products has a dual 13" Spal fan setup that will fit easily. I don't have a pic on my iPad but I will post one up later today. It fits the factory radiator dimensions perfectly, just have to notch the shroud for the brackets.
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#17 |
Sisyphus was my mentor!
![]() Join Date: Sep 2002
Location: Carleton Place, Ontario CANADA
Posts: 984
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Re: Electric fan clearance issues
I have a 4 core rad & a long water pump & used a Thunderbird fan & trimmed the shroud 1/2". Still cools super well & clears all pulleys np. Fan cost me $40 at the wrecking yard.
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passthebuck ![]() #5642 -TWO 1967 GMC 910's. One with L6/3-on-the tree and the other with 355 w/435hp & a 700r4. -a 2013 Honda Civic as my "sensible" car |
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#18 |
Registered User
Join Date: Apr 2010
Location: Wright, Wyo
Posts: 26
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I have A 396 in my 67 and use dual fans out of a 99 concorde. Itis tight but works great with the pulleys. The lincoln fans are a lot thicker.Price was 30.00 and I made my own brackets. Do alot of reasearch first and you can make it happen.
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#19 |
Senior Member
![]() Join Date: Jan 2009
Location: Raleigh, NC
Posts: 444
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Re: Electric fan clearance issues
Someone mentioned the "sidewinder fan" in another post. It only needs 1 5/8" at the center of the fan because they offset the motor. Cost is a drawback.
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1949/1954 with LS swap-yeah! http://s260.photobucket.com/albums/i...0/AD%20trucks/jumbled mess of unorganized photos |
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#20 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
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Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#21 |
Senior Member
![]() Join Date: Jan 2009
Location: Raleigh, NC
Posts: 444
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Re: Electric fan clearance issues
The only info I had saved was a site that carried it, but it has specs, etc. http://www.mattsonscustomradiator.com/side-winder.html
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1949/1954 with LS swap-yeah! http://s260.photobucket.com/albums/i...0/AD%20trucks/jumbled mess of unorganized photos |
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#22 |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
I found info on the sidewinder fan. That is one of those "why didn't I think of that" ideas. It is around $420 for one fan.
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Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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#23 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: Electric fan clearance issues
What's your thoughts on a mechanical fan with temperature clutch? Surely it will fit and you could come up with a shroud.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#24 |
Registered User
Join Date: Aug 2008
Location: Lantana, TX
Posts: 419
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Re: Electric fan clearance issues
Here is the clearance I had to work with, I haven't downloaded my camera with the installed pics yet, but there was plenty of room afterwards. The shroud is a 1/2" off the core and the center section where the WP needs clearance the taper to the fans only added like an 1". From the core to the back of the fan motors was like 4". My clearances were measured with a 4 core BBC radiator and 68-71 BBC stands and mounts.
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#25 | |
Registered User
Join Date: Jul 2011
Location: sutton WV
Posts: 1,822
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Re: Electric fan clearance issues
Quote:
Posted via Mobile Device
__________________
Jason '70 C-10 short fleet 427BB TH400 (SOLD) '10 Ford F 350 '13 Ford RAPTOR 6.2 MY BUILD THREAD http://www.67-72chevytrucks.com/vboa...d.php?t=612623 |
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