Electric fan clearance issues

[jeh]

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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[0608272c-10]

Also would like to hear a solution to this what kind of radiator is that
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[Lee H]

Can you off set the fan slightly to clear the motors away from the pulleys?
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[SS Tim]

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.

[buckskins4ever]

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.

[mightymouse]

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

[jeh]

Originally Posted by 0608272c-10

Also would like to hear a solution to this what kind of radiator is that
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The radiator is a Champion 4 row
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[jeh]

Originally Posted by SS Tim

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.

If I set the motor mounts in the rear set of holes, the valve covers will hit the firewall. The distributor will probably be very close to the firewall also. I have around a 1/2 to 3/4 inch between valve cover and firewall now.
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[SS Tim]

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.

[jeh]

Originally Posted by SS Tim

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.

I ended up not using those valve covers. I had clearance issues with the roller rockers after I put the Trick Flow heads on. I got a set of alum. fabricated covers. By the way , I found a slim 12 1/2" fan at Speedway Motors. I thought about buying 2 , they are rated @ 1800 cfm each.
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[buckskins4ever]

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.

[derotoreut]

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.

[jeh]

Originally Posted by derotoreut

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.

Not to change the subject, what did you use for power steering lines?
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[derotoreut]

Originally Posted by jeh

Not to change the subject, what did you use for power steering lines?
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I used something like this.

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

[cdowns]

use pusher fans infront of radiator

[ulakovic22]

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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[passthebuck]

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.

[Keith Grizzle]

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.

[chev3600]

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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[jeh]

Originally Posted by chev3600

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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Do you have any info on the "sidewinder fan" ??
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[chev3600]

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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[jeh]

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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[VetteVet]

What's your thoughts on a mechanical fan with temperature clutch? Surely it will fit and you could come up with a shroud.

[ulakovic22]

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.

[jeh]

Originally Posted by VetteVet

What's your thoughts on a mechanical fan with temperature clutch? Surely it will fit and you could come up with a shroud.

I've only got 3 5/8 " from radiator to pulleys. It might work but would be tight. I found some thin elec. fans from Speedway that I think will work. They sell a lot of hotrod and street rod goodies.
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