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Engines

This is a discussion on Engines within the LS2/LS3/LS4/LSx forums, part of the Vehicle Specific category; What is the basic horsepower of all of the engines, the LS1, LS2, LS3, LS4, and the LSX?...

  1. #1
    024mula 024mula's Avatar
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    silver
    '02 Firebird Formula

    Engines

    What is the basic horsepower of all of the engines, the LS1, LS2, LS3, LS4, and the LSX?
    Last edited by 024mula; 02-03-2011 at 03:13 PM.

  2. #2
    Impounded
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    LS1-320
    LS6-400
    LS3-430
    (these i know off the top of my head)
    the 402/408 stroker iron blocks are also popular on here and TECH

    bolt-ons and tune will range these numbers greatly. internals....that much more.
    it all depends on what you put into them. people with ls1s can embarrass a Z06.

    then again. numbers are just for bragging rights... dont get caught up in HP/TQ numbers...
    i was the same. what matters is 1/4 mile times.

    with that being said...
    why do you ask?
    if you are planning to drop a new engine in there...
    what are your goals and what is currently done with the car?

  3. #3
    024mula 024mula's Avatar
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    silver
    '02 Firebird Formula

    The car is all stock.

    No, I'm not planning on getting a bigger motor. I just think a person should know as much as he can about engines and whats out there.

    Thanks for the breif engine lesson.

  4. #4
    Junior Member 06MonteSS's Avatar
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    Laser Blue Metallic
    2006 Monte Carlo SS

    LS4 - 303hp / 328 tq - stock numbers...
    06MonteSS
    2006 Monte Carlo SS -- CAI, Poly mounts, STB's,
    Flowmaster Super 40's, Custom DiabLew Tune!
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  5. #5
    Junior Member
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    Pewter
    1999 Chevy truck Z71

    LS engines

    LS2 = 400hp

  6. #6
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    red
    audi a3

    For LSX it's 800 HP.

  7. #7
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    yellow
    2004 pontiac gto

    not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.

  8. #8
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    '02 WS.6 / '07 Suburban

    Quote Originally Posted by 04yellowjacket View Post
    not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.

    There is a significant difference between flywheel horsepower and rear wheel horsepower. Assuming you have an M6, subtracting approximately 12% for driveline losses results in your "350" having measured rwhp of right around 309.

  9. #9
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    2008 Hummer H3

    Quote Originally Posted by 04yellowjacket View Post
    not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.
    ..and no LS1's are "350" ci. they are 346 ci..

  10. #10
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    '02 WS.6 / '07 Suburban

    Well... I read that and thought he was saying his GTO was rated for 350 h.p., not that it was 350 cubes. Going back, I guess that is what he meant though. Thanks Steven.

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