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Thread: 5.3 Vortec?

  1. #11
    Join Date
    Dec 2007
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    wichita falls, tx
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    im confused....i thought suburbans/tahoes didnt switch body styles/motors till 2001??
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's

  2. #12
    Join Date
    Sep 2007
    Location
    Hutto TX
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    Quote Originally Posted by banker099 View Post
    im confused....i thought suburbans/tahoes didnt switch body styles/motors till 2001??
    right. and the ad now says 350 on it????
    1991 Silverado ECLB
    LM7-T56

  3. #13
    Join Date
    Oct 2008
    Location
    Houston
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    Quote Originally Posted by banker099 View Post
    im confused....i thought suburbans/tahoes didnt switch body styles/motors till 2001??
    Have to be careful when naming body style changes with years.
    Remember you could buy a 2001 "Model" in mid to late 2000
    2002 Tahoe 4.8 - soon to be turbo'd - SOLD
    1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
    2012 Raptor - 497rwhp at 10psi
    If you aint breaking - you aint going fast enough

  4. #14
    Join Date
    Aug 2008
    Location
    North Texas
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    12,078
    Quote Originally Posted by banker099 View Post
    im confused....i thought suburbans/tahoes didnt switch body styles/motors till 2001??

    Nope.

    The pick-ups changed in 1999 although the GMT400 body (like Greg's or Ricky's) was available as late as 2000 (therefore as a 1999 or 2000) as a 2500. The utility waited to 2000 to change to the GMT800 body WITH EXCEPTION of the 2000 Tahoe Z71 which was a GMT400 body. This is confusing since they offered a Tahoe and Suburban Z71 in the 800 body later.

    The major point is the LS engines were all in 800's and the SFI Vortecs were in the 400's.

    Another fun fact is the 99-00 GMT800 2500's were all 6.0's and NOT HD's 'cause the HD option was made for the body raise to fit the Allison LCT1000....since the DMax and the 8100 didn't debut until 2001, neither did the Allison or the 2500HD. Another funny is the 99 GMT800 2500 6.0 had iron heads.

    Have fun!

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