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Thread: motor

  1. #1
    Join Date
    Dec 2013
    Posts
    25

    motor

    I have gotten hold of a Ls 5.3 to put in my 94 truck that now has a 5.7.I believe that the 5.3 is only 285 hp stock so I will need to add some hp to move my bigg truck !!! I will be swapping in a Ls6 intake,new oil pump and pan(truck is lowered),headers,springs,hardened rods,ported heads,gasket set and a cam.Will I be able with these changes and a tune to hit around 400 hp !!!Not quite sure which cam to get yet--was leaning towards the XR265hr but I hear that is is only a few steps up from stock. Not that I want to go crasy but want something that I can notice and feel(hear too) !!! Any recomendations !! Thanks and what an awesome site !!! Great reading in here and a wealth of knowledge too !!!

  2. #2
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    596
    keep reading, esp. the stickys. it answered all my questions

  3. #3
    Join Date
    Jan 2014
    Location
    Las Cruces NM
    Posts
    209
    Look at the Texas speed 224 cam and you may want to consider keeping the truck intake. I know it's ugly but it flows very well and will make more torque than the ls6 which will help in the big truck.

  4. #4
    Join Date
    Sep 2008
    Location
    Arizona/Utah
    Posts
    3,955
    I won't be the first to say this but get a custom speced cam. You will want something in the 21x/22x range if youre keeping a stock stall. If you will be going with a bigger stall then the 224/228 is a great example of an off the self option but again a custom cam would be better.
    ECSB 2kSierra 2wd 4.8L-K&N-HPtuners-Calspeed LT's-Magnaflow-Tahoe20's-HankookRH06

    waiting to go in... 3.90s, 214/220cam

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