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Thread: Truck A/C on 5.7

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  1. #1
    Join Date
    May 2004
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    2,120
    Got the A/C to work on my 5.7 LS1. Here are the pics. Got the suspension back underneath it and it's ready for the motor. Here are the pics of the A/C. I need to get a little longer belt, the truck is just a little bit long but not by much. Let me know what you think.

















    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  2. #2
    Join Date
    Mar 2003
    Location
    San Marcos Texas
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    4,393
    That belt might be the correct length with the other idler pulley. There should be two small pulleys.
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  3. #3
    Join Date
    Apr 2005
    Posts
    295
    Hey Nitro,

    These look really, really good!! Everything is really tidy and the tensioner is in a good spot. With this kind of proximity, do you think there will be more or less stress on the tensioner? To me, it would seem that there would be less since the length of the belt is short (compared to my install). I would think this would mean there would be less slack available, so the tensioner doesn't have to work so hard....

    Did you make the mounts yourself?

    Good job!!
    93 Ext Cab w/ 99' LS1, AFR 205cc heads milled to 59cc, G5X2 cam (232/240 .595/.608@114LSA), Edel LS1 headers, 6.0L intake
    Edel IAS shocks, Hotchkis front/rear antisway bars, 3.73 Axle w/ 8.5" -10-bolt w/ Eaton Posi

  4. #4
    Join Date
    May 2004
    Posts
    2,120
    GMCwantsls1, This set up only comes with one pulley. I'll look again but the bracket I'm using isn't the 5.7. I'm using the truck tensioner, bracket and compressor but retained the 5.7 balancer with a little machine work. I'm sure the truck balncer is the difference in the belt length. The trucks I have at work only have one pulley on them that I can remember. The belt is around to 1/2 to 3/4" too long. The pulley is tensioned almost half way.

    93Ext5.7ltr, Yes I agree with you and I made everything myself.


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  5. #5
    Join Date
    Mar 2003
    Location
    San Marcos Texas
    Posts
    4,393
    <div class='quotetop'>QUOTE(NITROUS &#064; Jan 29 2006, 06&#58;56 PM) [snapback]42630[/snapback]</div>
    GMCwantsls1, This set up only comes with one pulley. I&#39;ll look again but the bracket I&#39;m using isn&#39;t the 5.7. I&#39;m using the truck tensioner, bracket and compressor but retained the 5.7 balancer with a little machine work. I&#39;m sure the truck balncer is the difference in the belt length. The trucks I have at work only have one pulley on them that I can remember. The belt is around to 1/2 to 3/4" too long. The pulley is tensioned almost half way.

    93Ext5.7ltr, Yes I agree with you and I made everything myself.
    [/b]
    Ah I understand now&#33; You used the truck compressor and bracket on a f-body crank pulley&#33;
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  6. #6
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    It&#39;s looking really positive there, Lance. I can&#39;t wait to see the finished product&#33; Keep us updated.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
    Join Date
    May 2004
    Posts
    2,120
    You got it bro&#33; I wanted to try something different


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  8. #8
    Join Date
    Oct 2003
    Posts
    473
    Lance...Nice A/C set-up...I think your the first one I&#39;ve heard of, using that combination on an LS1. And thanks very much for sending me the wiring schematics&#33; Gar

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