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Thread: LS7 cam in5.3 plausable or not

  1. #1
    Join Date
    Sep 2010
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    2

    LS7 cam in5.3 plausable or not

    just wanted to know if any one has heard of doing this .I thought by mis matching timming gears it would possibly work .I know LS7s are physicaly the same block .

  2. #2
    Join Date
    Sep 2006
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    THE 405
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    The LS7 cams are a single bolt where the GenIII cams use 3 I believe...I'm sure theres more differences too
    2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
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  3. #3
    Join Date
    Jul 2008
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    329
    The LS7 cam would be a poor choice for a 5.3 in a truck. You would lose most of your low-end grunt. It's designed to work in a light-weight vehicle that revs high.

  4. #4
    Join Date
    Sep 2010
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    like a camaro with a turbo maybe.

  5. #5
    Join Date
    Oct 2008
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    Scott, Arkansas
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    Do you know the specs on that cam? 211/230 .591 lift. That is way too much split for a 5.3 IMO. Something a bit more close ratio would perform much better...like an EPS 222/226 or an XER 224/228 and those are not small cams at all in a 5.3.
    2005 Silverado SS AWD
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