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Thread: 03 zo6 heads

  1. 06-19-2007, 03:06 AM #1
    jinouk67
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    04 gto A/T

    03 zo6 heads

    Does anyone know what the casting or part number is for a 03 zo6 heads ? reply to thread or e mail me joc1367@sbcglobal.net
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  2. 06-21-2007, 07:06 PM #2
    Deneau Valteau
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    Quote Originally Posted by jinouk67 View Post
    Does anyone know what the casting or part number is for a 03 zo6 heads ? reply to thread or e mail me joc1367@sbcglobal.net
    They are 243 castings
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  3. 06-25-2007, 08:22 AM #3
    smokeyburnouts
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    Quote Originally Posted by Deneau Valteau View Post
    They are 243 castings
    correct. i have them with the z06 cam on my ws6. its a decent, reliable upgrade.
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  4. 06-26-2007, 05:40 PM #4
    jinouk67
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    04 gto A/T

    Thanks, for the replys. How many h/p did the heads produce?
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  5. 06-27-2007, 05:58 AM #5
    smokeyburnouts
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    i havent dynoed my car yet. i have pretty much everything converted to GM LS6 (but my LS6 heads were ported before installation), MTI lid, smooth bellow, Shaner S3 throttle body, catback and had the z06 tune flashed on. so im hoping for somewhere close to 360s at the wheels. i dunno if thats expecting too much, but thats what i'm hoping. regardless, the cam/heads should boost your pull from about 3,000rpm on up.
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