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  1. #1
    Join Date
    Jun 2006
    Location
    Alvin,Texas
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    22
    I drive a 94 ext.cab Z71 with 5.7 in it. I need help deciding on what engine to go with. Im debating on the Lq4 or the Lq9. My plans are to put a cam in and sts turbo. But on the turbo i cant run intercooler cuz the ones ive seen sit below the bumper and since my truck does go offroading i would be weary of hitting it. So what would be the best option? Im looking to get around at leasts 450hp or more. Im looking for speed, power and reliability. What other options would you recomend for my swap? Any help would be greatly appreciated.

  2. #2
    Join Date
    Sep 2006
    Location
    Lafayette, Indiana
    Posts
    117
    <div class='quotetop'>QUOTE(Muddin 94 Z71 &#064; Sep 27 2006, 10&#58;41 AM) [snapback]66806[/snapback]</div>
    I drive a 94 ext.cab Z71 with 5.7 in it. I need help deciding on what engine to go with. Im debating on the Lq4 or the Lq9. My plans are to put a cam in and sts turbo. But on the turbo i cant run intercooler cuz the ones ive seen sit below the bumper and since my truck does go offroading i would be weary of hitting it. So what would be the best option? Im looking to get around at leasts 450hp or more. Im looking for speed, power and reliability. What other options would you recomend for my swap? Any help would be greatly appreciated.
    [/b]
    I had the 6.0 in a 2000 and loved the power it had...throttle response was something it lacked...a bit...but it would tow anything you put behind it with no problems.
    2000 PSD F250 Super Duty Ext cab long bed 4x4 - a few mods...450+ HP 500+ lbs of torque&#33;&#33; (Daily Driver)
    1993 YJ "Buggy"
    1991 3/4 ton Suburban 6.2L turbodiesel

  3. #3
    Join Date
    May 2006
    Location
    Waco TX
    Posts
    3,113
    You can run more boost through and LQ4 than a LQ9. If your planning on going Turbo id go LQ4
    DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31

    2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts


  4. #4
    Join Date
    Jun 2006
    Location
    Alvin,Texas
    Posts
    22
    Yea but the thing about the boosts is i cant run a intercooler. so running over like 5 psi would actiually make me lose hp because the air would be hotter. this is just what i heard not sure if it is true. does anybody know if there is anyway to avoid having to put intercooler under bumper? If i could mount intercooler somewhere else besides under bumper i would do it.

  5. #5
    Join Date
    Jun 2005
    Posts
    21
    <div class='quotetop'>QUOTE(Muddin 94 Z71 &#064; Sep 27 2006, 05&#58;03 PM) [snapback]66858[/snapback]</div>
    If i could mount intercooler somewhere else besides under bumper i would do it.
    [/b]
    There is always the option of putting the intercooler in front of the radiator, like diesels do it. The only problem you would run into is having a radiator that would fit between the input and output of the intercooler. Assuming you got the intercooler and radiator together it wouldn&#39;t take too much to get it to work.
    “Learn as if you were going to live forever; Live as if you were going to die tomorrow.”
    “In dating and mating, what is finally settled for is always a function of what is available.”
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  6. #6
    Join Date
    Mar 2003
    Location
    San Marcos Texas
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    4,393
    Just run a big shot of methanol injection and you will cool it just fine. I&#39;m sure there is an intercooler that will work. Try TRT turbos&#33; They can make a custom setup.
    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

  7. #7
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    450 HP is easily reached with a 408 cubic inch engine, no turbo required. The 408 starts life as a 6.0L and gets stroked to 4" and bored .030" oversize. Get someone to build you one up with about 11:1 compression and big valve heads and go have fun.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  8. #8
    Join Date
    Jun 2006
    Location
    Alvin,Texas
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    22
    *Bump*

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