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  1. #1
    Join Date
    Nov 2003
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    The 243s were on the GTO and Corvette LS2 6.0L engines.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
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    Augusta, Ks
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    If they are 317s and not 243s....say bye bye compression....lol
    2000 Silverado ECSB- 5.3 CAI, Pacesetter LTs, ORY- Pipe, Magnaflow XL, E-fan, Ported T/B , Nelson Tuned, Built 4l60e, Circle D Stall, 3.42s G80, 2-4 Drop, Hertz Highs, Rockford 501s

    2004 Buell XB12s

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  3. #3
    Join Date
    Oct 2003
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    473
    Quote Originally Posted by RedHeartbeat View Post
    The 243s were on the GTO and Corvette LS2 6.0L engines.
    Yes, and they also came on the LS6 5.7 litre engines. Which were the first engines to have them, from GM.

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