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I need a FanCluch but don't know>>>>

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Burt4x4, Aug 14, 2001.

  1. Burt4x4

    Burt4x4 3/4 ton status

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    I need a FanCluch but don\'t know>>>>

    Ok alot of talk about cooling but I have one more question!
    I have no experiance at all when talkin FanCluches!
    I have heard/read allot of advantages to running a cluch so I'm gonna goforit.
    What brand should I buy?
    Does any fan bolt onto a cluch or does the fan have to be made for that cluch?
    Summit sells a cluch for 40 bucks. Does anyone have this one? If so what kinda fan is bolted to it?
    Oh ya I have a short style water pump, does that matter??
    Thanks

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  2. Triaged

    Triaged 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    You have to run a regular fan (ie not a flex fan) with a fan clutch. You could just get one from a J/Y.

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
     
  3. Burt4x4

    Burt4x4 3/4 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    Well the J/Y around my home are well full of junk!! No Trucks that have didlly squat on them. plus I want new for reliablity...
    So you cannot put a flex fan on one of thease cluches??

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  4. xnoahx

    xnoahx 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    No, the clutch will not bolt up to the fan. I read an article a while back in an issue of carcraft that had acampaisions of different cooling fans and how they afftect horse power. if i remembe correctly, the second best fan they tested was a clutch fan with a flex-a-lite 5655 thermal clutch. it goes for a little more than $60 and you can also get a flex-a-lite fan to fit the clutch for another $30 but that is not a "flex fan." The first best fan they tested was the flex-a-lite black magic electric fan

    Check out my 73 K5 <a target="_blank" href=http://members.theglobe.com/xnoahx/73k5.htm>http://members.theglobe.com/xnoahx/73k5.htm</a>
     
  5. Triaged

    Triaged 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    Don't you have an electric fan? Why are you going to go with a clutch fan? Or are you going to use both?

    '71 Blazer CST w/ a 400sbc, 4" lift, 36" Supper Swampers, and alot of rust
     
  6. xnoahx

    xnoahx 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    A good fan clutch will free up more power than a flex fan. But i dont know if they pull more air

    Check out my 73 K5 <a target="_blank" href=http://members.theglobe.com/xnoahx/73k5.htm>http://members.theglobe.com/xnoahx/73k5.htm</a>
     
  7. Burt4x4

    Burt4x4 3/4 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    Yes i am gonna run both! I have the BlackMagic M150 running solo right now and it has allways kept my 350 cool, until this summer.
    I think my engine mods, added weight, lower gearing, etc... has added more load to my motor and now when my rig is working hard up thoes long hill trails the temp gage starts rising and doesn't stop until I kill the motor at 230.
    So I am going to a 4row and adding a cluch fan and will use the M150 for thoes hot working situations...

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <a target="_blank" href=http://www.geocities.com/baja/5099>www.geocities.com/baja/5099</a>
     
  8. 4x4blazer

    4x4blazer 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    I bought a clutch from summit, works fine. I got an aluminum universal 17in fan from AutoZone. It comes with a couple of different bolt patterns drilled in it so it will work on different clutches. Pulls alot more air than stock. I am happy with it.
     
  9. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Re: I need a FanCluch but don\'t know>>>>

    Instead of going for a new four core rad you should look at a high capacity 2 row. After my old rad let go, I was shopping around for a new, bigger one and my mechanic told me about this fancy 2 core. He swore it would cool as good as a 3 or 4 core- I was pretty skeptical!!!!! He promised me that if it didn't do the job he would pull it out and replace it with a 3 core for FREE!

    Let's just say I still have the highflow 2 core in the truck. I use my K5 for lots of towing in the summer and for the first time in 4 years of towing, my fan clutch hasn't engaged once(even when it was 32' Celcius), and I tow over some pretty nasty passes up here.



    <font color=red>PHOTO ALBUM-</font color=red> <a target="_blank" href=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</a>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  10. 90blzr

    90blzr 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    So.....what kind of radiator is it and how much $$ are we talking??

    <P ID="edit"><FONT class="small">Edited by 90blzr on 08/14/01 05:44 PM.</FONT></P>
     
  11. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Re: I need a FanCluch but don\'t know>>>>

    I'm not really sure who the manufacturer is........I seem to remember paying around $280 CDN for it. If you really want to know I can call my guy tomorrow and ask.

    I just went and checked the truck. I'm not sure if this helps at all but the rad is made by SPI up here in Canada. I'll try to get some more info tomorrow.



    <font color=red>PHOTO ALBUM-</font color=red> <a target="_blank" href=http://albums.photopoint.com/j/AlbumList?u=1289798>http://albums.photopoint.com/j/AlbumList?u=1289798</a>.......<font color=blue>TRUCK & HIKING PICS</font color=blue>
     
  12. 90blzr

    90blzr 1/2 ton status

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    Re: I need a FanCluch but don\'t know>>>>

    Thanks that'd be great!
     
  13. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: I need a FanCluch but don\'t know>>>>

    Someone mentioned a STOCK AL GM replacement radiator too..an AL radiator will cool better than a comparable copper/brass one, so that would be a good option too. Aftermarket has to be making them as well as GM, so cost should not be bad. (I'm not talking Griffin radiators, there are stock aluminum style ones out there I'm sure)

    Dorian
    My tech/links page: <a target="_blank" href=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</a>
    No anti-theft measures on your truck? No pity when its stolen
     

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