View Poll Results: Which engine?

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  • 6.0 LS6

    9 28.13%
  • 6.0 LS2

    23 71.88%
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New engine - LS6 vs LS2

This is a discussion on New engine - LS6 vs LS2 within the Firebird / WS6 forums, part of the Vehicle Specific category; This is completely out of curiosity. Say for whatever reason, you get in an accident or whatever it may be, ...

  1. #1
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    New engine - LS6 vs LS2

    This is completely out of curiosity. Say for whatever reason, you get in an accident or whatever it may be, and you have to replace your LS1.

    Instead of getting another LS1 and if money was not an option, which would you choose? ... Now I know I said money isn't a option, but a LS3 or a LS7 isn't an option. :P This is purely between 2 engines, and 2 engines only.

    So which would you choose, and why please?

    6.0 LS6

    or

    6.0 LS2

  2. #2
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    06 GTO

    well i have a lt1, but i would love to have the ls2.

  3. #3
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    triple black
    02 z28 m6

    ls6 was 5.7?

  4. #4
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    They released a 6.0 LS6.

  5. #5
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by DrkEagle View Post
    They released a 6.0 LS6.
    Please explain.



    I would take the LS6.
    But it depends on a few things. Future modding going to be done? If so, might lean on the LS2 a little more.

  6. #6
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    Quote Originally Posted by DrkEagle View Post
    They released a 6.0 LS6.
    Um, yeah, please explain. From my knowledge, the LS6 was 5.7 liters. The 2005 GTO was the 6.0 Liter LS2. I don't believe that GM had a 6.0 liter LS6, but I could be wrong if you can give me an example.

  7. #7
    Detailing + Design third_shift|studios's Avatar
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    from what i understand, the ls6 vettes are still faster than ls2 vettes....so, that said, i'd go ls6.

  8. #8
    Senior Member Bottesini's Avatar
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    Just because I have never heard of the LS6 being anything other then a 5.7 I would go with the LS2 if you plan on doing mods the more cubes gives you an advantage.

  9. #9
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    http://en.wikipedia.org/wiki/GM_LS_engine#LS6

    The LS6 is a higher-output version of Chevrolet's small-block LS1 engine. It is an all-aluminum 5.7 L (346 in) pushrod engine. The initial 2001 LS6 produced 385 hp (287 kW) and 385 ftlbf (522 Nm), but the engine was modified for 2002 through 2004 to produce 405 hp (302 kW) and 400 ftlbf (542 Nm) of torque. The LS6 was originally only used in the high-performance C5 Corvette Z06 model, with the Cadillac CTS V-Series getting the 400 hp engine later. The V-Series used the LS6 for two years before being replaced by the LS2 in 2006. For 2006, the Z06 replaced the LS6 with the new 7.0L LS7.

    http://en.wikipedia.org/wiki/Chevrol...tte_C5_Z06#LS6

    For the 2002 model year, the LS6 was further refined and rated at 405 hp; this horsepower increase was achieved through deletion of two of the precatalytic converters in the exhaust system, improvements to the air induction system, and installation of high-lift camshafts along with a lightweight valve gear. Correspondingly, Z06 Corvettes produced from 2002 until 2004 displayed unique "405 HP" badges on both front fenders as a testament of the vehicle's engine power.

    Hmm, I was sure they released a 6.0 LS6 for a few odd years, before switching over to the LS2 but I guess I'm wrong. There's a lot of mixed information about it. So this is how they got the power from the 5.7? I stand wrong then.

  10. #10
    Slow'er'Ass Mr. Luos's Avatar
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    The LS6 is a 5.7L. The power is increased with some valvetrain upgrades.

  11. #11
    Firebird Encyclopedia 9T8W66's Avatar
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    LS2 FTW with a LS6 Intake makes more power than LS6.
    And no substitute for cubic inches.
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  12. #12
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    The LS6 was always a 5.7L/346 CI motor. It would be more advantageous to go with the LS2 simply because you would have more cubes to use, but the LS6 would be more compatible with sensors, wiring harness etc. FWIW, I would not go with either original option you listed, I would opt for a 402 LS2 or wait and see what the LS3 brings out.
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  13. #13
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    navy blue matallic
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    im going with the above statment

  14. #14
    Sarge for AAG Emperor hutch1999's Avatar
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    I voted for the Ls2 just for the fact of more cubes, which is an old school way of thinking I guess.

  15. #15
    Senior Member Musclefan21's Avatar
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  16. #16
    MEMBER 5150's Avatar
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    Ls2, because you can put the l92 heads on it.

  17. #17
    Member The_Wretched's Avatar
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    ls6. good motor and great potential.

  18. #18
    Senior Member INMY01TA's Avatar
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    Like Y2KPewterSS said, 402 LS2 stroker. (if money was no object)

  19. #19
    Senior Member grouch0jr's Avatar
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    ls2 for me. ls2 has almost the same performance figures as the ls6. larger displacement means more hp down the road.

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