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Thread: Ls1 Heads

  1. #1
    Junior Member
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    Jan 2008
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    YELLOW
    2001 GMC SIERRA

    Exclamation Ls1 Heads

    Ls1 Heads 862 Or 241 What Is Better

  2. #2
    Member DocEwww's Avatar
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    Aug 2005
    Location
    Burlington, NJ / Syracuse, NY
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    39
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    241s are the newer casting that flow slightly better.

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