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Thread: 4.10 gears

  1. 02-02-2008 08:33 PM #1
    Z88 sd's Avatar
    Z88 sd
    Z88 sd is offline "Great One"
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    4.10 gears

    how many more rpms would i be turning with a set of 4.10s vs my 3.42s
    David,
    2003 GMC Sierra Denali, LQ4, AWD, AWS, 4.10, Wheatley 93 tune, LT headers, GMPP CAI, BBK 80mm TB, MSD wires, E3 plugs, 160* T-stat, Flowmonster DI/DO, cutouts. Working on 4.8 heads, just purchased Comp 228R cam, 918 Springs, TI retainers, 7.4 hardend pushrods,
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  2. 02-02-2008 10:21 PM #2
    COWL327's Avatar
    COWL327
    COWL327 is offline Senior Member
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    Should gain about 400 rpms...with my 4.30s i jumped about 425-450.3.42s cruise at 65 1500 rpms now about 1950.
    Vortec Performance Tuned
    LQ9 built 4L60 LTs and a billion miles on the speedo!
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