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Thread: 4.8 vs 6.0

  1. #1
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    4.8 vs 6.0

    I have a 2007 NBS crew cab 4.8 and was wondering if I should keep it or swap for a 6.0, it's not gonna be for racing but I just don't want a slow truck

  2. #2
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    6.0 no doubt

  3. #3
    Heavy trucks, like your CrewCab, need torque, which the 4.8 lacks due to it's short stroke and small cubes, especially if it's stock or near stock. Even a bone stock 6.0L would make your truck much faster, and stronger due to the higher hp & especially the bump in torque. A modded 6.0L will fly. If you got the $$$ for a swap, a 6.0 is a nice investment. My .02.

  4. #4
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    How much do you think an lq4 or lq9 with a good tranny would go for? South Texas area

  5. #5
    RGVTP Member
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    Check in the forsale thread there's a member selling 6.0 and tranny for $1400 if not mistaking

  6. #6
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    As soon as I hit the valley I'm going to start looking for a 6.0, what transmission would work best with that? 4l80 and 4.10 gears?

  7. #7
    4L80 and 4.10s would work perfect for a 6.0. In case you are open diff, or G80 equipped, I suggest throwing in an aftermarket limited slip diff when you do the gears. Good luck on the swap.
    Last edited by Tractionless; 09-03-2017 at 06:21 PM.

  8. #8
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    Open diff? G80? I was thinking about throwing in a posi into the differential

  9. #9
    Administrator Leo@Rgvtp's Avatar
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    4.8 Loves boost

  10. #10
    "Open differential" - aka "pegleg", aka "one tire fire!". No locker installed from the factory. Usually, only the passenger side tire will spin during a burnout.

    G80 - original locker from GM, which is weak af, intended for stock power. My cousin broke his and he was only running 13.7s on a fbo 5.3L. Check your glove box RPO codes for "G80" if you are unsure if your truck came with one.


    Neither of these two are any good, especially with the torque of a 6.0L. An aftermarket posi is the way to go since you will be doing gears as well. I'm running 4.10s and an Eaton Trutrac, and it works like a charm, and will probably outlast the transmission. Any questions, let us know man.
    Last edited by Tractionless; 09-05-2017 at 12:04 AM.

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