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Thread: Official NBS 4.3v6 to GEN 3 V8 swap Guide

  1. #11
    DBYRD Guest
    bolts only on mounts, no welding. read above and it pretty much tells u it all. ull need to piece together the mounts but its simple. since ur doing a 5.3 i cant see any problems with it being a direct fit.

  2. #12
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,396
    Question,

    I have an 01 5.3 which is cable driven throttle body, will I need a new cable from my 4.3 so that it will reach to the 5.3?
    1951 3100
    1984 C10

  3. #13
    <div class='quotetop'>QUOTE(duckysbht &#064; Mar 7 2007, 10&#58;07 AM) [snapback]85592[/snapback]</div>
    Question,

    I have an 01 5.3 which is cable driven throttle body, will I need a new cable from my 4.3 so that it will reach to the 5.3?
    [/b]

    good question .
    No, the throttle cables are the same for the v6 models and the v8s.
    http://i99.photobucket.com/albums/l2...hsigcopypt.jpg
    6.0 swap - TR224 112 lsa - 918 springs -7.4" comp pushrods- LS2 timing chain -Walbro 255LPH intank- Pacesetter LT&#39;s - Custom Y-pipe with Quickflow muffler - LS1 E-Fans - 160 stat - Nelson Tuned - Fuddle 3K stall - FLT4l65e w/ Vac MOD - DJM 4/6 - Doetsch Drop shocks

  4. #14
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,396
    Would it be better to purchase a 01 5.3 Computer Harness from a junkyard/truck similar, or a Custom made harness by nelson?
    1951 3100
    1984 C10

  5. #15
    I would purchase one from a junkyard personally,
    It is plug and play just like Nelsons but cheaper.
    http://i99.photobucket.com/albums/l2...hsigcopypt.jpg
    6.0 swap - TR224 112 lsa - 918 springs -7.4" comp pushrods- LS2 timing chain -Walbro 255LPH intank- Pacesetter LT&#39;s - Custom Y-pipe with Quickflow muffler - LS1 E-Fans - 160 stat - Nelson Tuned - Fuddle 3K stall - FLT4l65e w/ Vac MOD - DJM 4/6 - Doetsch Drop shocks

  6. #16
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,396
    Can anyone tell me what SPECIFIC accessories will swap over from the 4.3 to a 4.8/5.3/6.0?
    1951 3100
    1984 C10

  7. #17
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689
    As far as I know nothing will swap over. Alternator, maybe but I doubt it will work either.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  8. #18
    Join Date
    Apr 2006
    Posts
    51
    <div class='quotetop'>QUOTE(duckysbht &#064; Mar 27 2007, 06&#58;33 AM) [snapback]87444[/snapback]</div>
    Can anyone tell me what SPECIFIC accessories will swap over from the 4.3 to a 4.8/5.3/6.0?
    [/b]
    Nothing swaps. You&#39;ll have to get a full set of V8 accessories.
    '99 GMC RCSB
    3" Body lift, 4" Rancho lift, Fox shocks
    36" BFG All-terrains
    LQ9 6.0L swap, gt2-3 cam, longtubes, LS1 fans, Nelson Performance tune
    4.8 gears/Eaton posi
    Built 4l65e
    Custom paint, roll pan, filled tail lights, relocated tail gate handle

    Future mods:
    Boost!!

  9. #19
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,396
    Can someone put up a list of everything you might need in terms of the accessories?
    1951 3100
    1984 C10

  10. #20
    <div class='quotetop'>QUOTE(duckysbht &#064; Mar 27 2007, 02&#58;46 PM) [snapback]87473[/snapback]</div>
    Can someone put up a list of everything you might need in terms of the accessories?
    [/b]

    The power steering pump swaps over as well as the alt.
    http://i99.photobucket.com/albums/l2...hsigcopypt.jpg
    6.0 swap - TR224 112 lsa - 918 springs -7.4" comp pushrods- LS2 timing chain -Walbro 255LPH intank- Pacesetter LT&#39;s - Custom Y-pipe with Quickflow muffler - LS1 E-Fans - 160 stat - Nelson Tuned - Fuddle 3K stall - FLT4l65e w/ Vac MOD - DJM 4/6 - Doetsch Drop shocks

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