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Thread: GMC Sierra 2003 5.3l Stock Cam Specs.

  1. 04-19-2009 10:54 AM #1
    Bensmeding
    Bensmeding is offline Junior Member
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    GMC Sierra 2003 5.3l Stock Cam Specs.

    What are the stock specs of a stock GMC sirra 2003 5.3l.
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  2. 04-19-2009 11:51 AM #2
    GasGuzzler's Avatar
    GasGuzzler
    GasGuzzler is offline Pants on the ground
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    Duration @ .050" somewhere near 190 and lift somewhere near .470". Someone else probably knows for sure.
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  3. 04-19-2009 03:24 PM #3
    Madd Maxx
    Madd Maxx is offline Senior Member
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    Easy search on Google. Try it sometime.

    5.3 LM7
    190/191 int/exh @ 0.05" duration
    0.466" / 0.457" int/exh lift
    114 LSA

    LS1 Info and Specifications - SMOKEmUP.com
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  4. 04-19-2009 11:20 PM #4
    GasGuzzler's Avatar
    GasGuzzler
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    I guessed good
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