Turbo Tahoe?

Discussion in 'Performance' started by ibfreeman88, Jun 4, 2018.

Sponsored By: Black Bear Performance
  1. ibfreeman88

    ibfreeman88 Member

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    It's definitely not a 6L80 I know that for sure.
     
  2. swathdiver

    swathdiver Full Access Member

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    Someone went through a lot of work to backfit the 4-speed in there then, even the TCM had to be changed, should be a T43.
     
  3. 09TahoeLT

    09TahoeLT TYF Newbie

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    Did everything mount up no problem? Like the inner cooler? I saw some people having to make there own mounts for it
     
  4. ibfreeman88

    ibfreeman88 Member

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    The kit comes with brackets for the intercooler which worked well. But to be honest if I were do it again I'd probably go with the trick performance kit for simplicity and what seems to be more quality parts in regards to V band clamps and T bolt clamps etc.
     
  5. mikeyss

    mikeyss Full Access Member

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    I think the 2009 Tahoe had the option to have a 4.8, if it was 2WD. The 4.8 would have had a 4L60. I found this as well:

    2009 CHEVROLET TAHOE SPECIFICATIONS


    • Price (MSRP)
      $ 36,965
      Value Rating
      N/A
    • Engine Name
      Engine: V8, 4.8 Liter
      Transmission Name
      4 Speed Automatic w/Overdrive
    • Trim
      LS 2WD
      Class
      Full-Size SUV
    • Horsepower
      [email protected]
      Standard MPG
      14 City / 20 Hwy
    • Body Style
      SUV/Crossover
      Drivetrain
      2WD
    • Fuel Type
      Unleaded Regular
      Seating Capacity (Std/Max)
      6/9
     
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  6. ibfreeman88

    ibfreeman88 Member

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    My truck does in fact have a 4L60e and it came from GM that way. M30 on the RPO codes. IMG_2242.JPG
     
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  7. mikeyss

    mikeyss Full Access Member

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    Definitely an odd one! I know the 09 trucks split the year between the 4L60 and the 6L80 (I was a tech and a parts guy for GM) and every 09 Tahoe 5.3 had a 6L80, while the 4.8 2WD only had the 4L60. I bet it's a very early 09.
     
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  8. ibfreeman88

    ibfreeman88 Member

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    I was really hoping I was going to get lucky lol so then I could skip the 4L80 swap and go straight to a cam and converter lol. But I'll just make due until I get all the trans swap parts in hand.
     
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  9. iamdub

    iamdub We need a new plague.

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    Odd and unexpected! Tenth digit in VIN is "9", designating it as a 2009. "LMG" is the 5.3 and, as you already know, M30 is the 4L60E. Oh well, with enough power and with a good shift tune, you won't miss the other gears so much.
     
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  10. swathdiver

    swathdiver Full Access Member

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    Well I'll be a monkey's uncle! Never heard of that before. I read where the pickemups started out 2009 with 4-speeds but not the SUVs. Guess it might have had something to do with it being a PPV maybe?

    GT4 = 3.73 gear, that's good!
     
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