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Biggest Crank for 5.3L LS1?

This is a discussion on Biggest Crank for 5.3L LS1? within the Internal Engine forums, part of the LSx Technical Help Section category; I cannot find this info. I need to know the biggest crank that I can put into my 5.3L. I ...

  1. #1
    Junior Member
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    Dec 2009
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    North Carolina
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    will be pearl blue
    1982 Camaro Z28

    Biggest Crank for 5.3L LS1?

    I cannot find this info. I need to know the biggest crank that I can put into my 5.3L. I am only borring like 30 over.
    Background setup-
    Ground up from frame build of my 1982 Z-28
    Swap 5.3L with twin turbo (TD04)s
    running about 600hp to wheels
    12 psi

    What is the biggest Crank??

  2. #2
    Awaiting Activation
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    Oct 2007
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    SOM
    1998 T.A.

    4.0" is as big as I would go..... Seen a guy go 4.125" but I think the piston comes too far out of the hole......

  3. #3
    Junior Member
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    will be pearl blue
    1982 Camaro Z28

    Thats about what ive been hearing...

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