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Thread: newbe 5.3 question

  1. #1
    Join Date
    Dec 2008
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    Hugo, Ok
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    newbe 5.3 question

    i wanna replace my old carb 350 with a new 5.3

    what all do i need for it to run right and all my old gagues and cruise work still?

  2. #2
    Join Date
    Nov 2008
    Posts
    13
    Go here,
    LT1 Swap

    Look in wire harness info,great site with pinouts,and even how to wire the cruise with dbw setup.

  3. #3
    Join Date
    Dec 2008
    Location
    Hugo, Ok
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    i seen that other day havnet looked all way through it.
    look like it has some good info

  4. #4
    Join Date
    Sep 2007
    Location
    Hutto TX
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    467
    search button homie. In the "LSX Truck Conversion" forum there are three stickies at the top of the forum you need to read. In addition, you should let us know what truck/engine/transmission/upgrades you have now. How "new" a 5.3 do you want, what sort of transmission do you want to bolt up? And finally, most importantly, how much $$$$ do you plan on spending?
    1991 Silverado ECLB
    LM7-T56

  5. #5
    Join Date
    Dec 2008
    Location
    Hugo, Ok
    Posts
    101
    ok ill read that
    i got a 84 silverado with a carbed 350 4 bolt main with 700r4
    cruise dont work like it is owner before me cut it out.
    otherwise its all stock

    i want to put a 5.3 or a 6.0 from a 00 or up
    either a 700r4 or a 4l60e which ever will work best
    and get my cruise to work again (never worked)

    i guess spend what it takes haha
    Last edited by JustN87; 12-30-2008 at 09:44 PM.

  6. #6
    Join Date
    Dec 2008
    Location
    Hugo, Ok
    Posts
    101
    ok i wanna see if i got this right now.

    imma need motor with mounts, tranny, harness and pcm, inline or intake fuel pump,and a different way to hook the cruise control up right?

  7. #7
    Join Date
    Dec 2008
    Location
    san antonio TX
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    1,365
    im going the same route you are im going to swap my carbed 350 in my 82 c10 for a 5.3L im going to go look at the motor tommorrow. this is going to be my first ls1 engine swap.

  8. #8
    Join Date
    Dec 2008
    Location
    Hugo, Ok
    Posts
    101
    Quote Originally Posted by lechez71 View Post
    im going the same route you are im going to swap my carbed 350 in my 82 c10 for a 5.3L im going to go look at the motor tommorrow. this is going to be my first ls1 engine swap.
    mine to tryin figure what all i need and so everything will work normal still

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