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Thread: Sorry another 6.0l swap question

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  1. #1
    Join Date
    Aug 2008
    Location
    Fairborn, Ohio
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    32

    Sorry another 6.0l swap question

    Ok, New to ls1truck.com and chevy for that matter. I have a 99 1500 rcsb
    4x4 with the 4.8l auto. Motor just went south the other day. I want to do a 6.0l swap. My question is; What year 6.0l do I need. I know the PCM will need to be flashed. Just need to know what year Motor to look for. This is a DD so I cant have to much down time on this. Thanks in advance.

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    You should look for a 2002 and newer 6L. Be wary of any engines that have a flat flexplate, not dished. If no flexplate, be sure the trans end of the crankshaft does not stick out of the cover about 1/2", a dead giveaway that its a early 6L. Also, avoid 6l engines with iron heads.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Jan 2008
    Location
    richmond, va
    Posts
    10
    2001 was the first year they changed the crank and they have aluminum heads

  4. #4
    Join Date
    Jan 2009
    Posts
    10
    what are the 2001 v. 2002 differences?

  5. #5
    Join Date
    Jan 2008
    Location
    richmond, va
    Posts
    10
    they went to the drive by wire in 02.

  6. #6
    Join Date
    Aug 2008
    Location
    North Texas
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    12,078
    Quote Originally Posted by m8w6r77 View Post
    they went to the drive by wire in 02.
    Not all of them. 2003 was the pretty much all DBW year.

  7. #7
    Join Date
    Aug 2008
    Location
    Fairborn, Ohio
    Posts
    32
    I found a 05 6.0l out of a Hummer with 55K on. The guy is asking 1000.00 for it. is that a good deal? And that should be the one I need

  8. #8
    Join Date
    Aug 2008
    Location
    Fairborn, Ohio
    Posts
    32
    How much of a difference will I feel. After the Tune from Nelson Performance of course

  9. #9
    Join Date
    Dec 2006
    Posts
    4,033
    but if youre cable driven you can always stay cable driven, use your intake and tb off the 4.8. its a pretty simple swap once you find the correct motor youre wanting
    Simple: 408 on steroids!
    single digits coming soon!

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