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Thread: 383 which balancer ???? need help

  1. #1
    Junior Member APPRENTICE
    Join Date
    Mar 2003
    Posts
    12

    383 which balancer ???? need help

    OK a friend asked me a question i couldnt answer so here goes he bought a NEW 383 sbc rotationg assembly no bal or flexplate it has been internal bal becouse he paid 190.00 to have it done but the machine shop didnt tell him which balancer or flexplate to use 400 style or 350 style 400 being ext. 350 being internal i say 350 but im not real sure becouse of the 400 style crank any help so i can get him the answer so he can get the rest of his parts .. thanks i just didnt want to give him the wrong answer becouse i wasnt sure mike

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998
    If its int balanced get a int flexplate and balancer ATI Balancer is what I'd use
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  3. #3
    Senior Member MASTER BUILDER
    Join Date
    Dec 2005
    Location
    berea,ky
    Posts
    184

    balancer

    If it is internaly balanced you use the balancer for internal balance and the flywheel for internal balance.Do not use the external balance flywheel or balancer if it is internally balanced.Hope this helps.

  4. #4
    Senior Member DYNO TECH
    Join Date
    Feb 2004
    Location
    Leonard, Texas
    Posts
    414
    When it was balanced it should have been done with the balancer and flywheel. Internally balanced, you won't want to use the external 400 stuff.
    'A government big enough to give you everything you want, is big enough to take away everything you have.'

    Thomas Jefferson


    http://www.adinms.com/sitebuildercon...junkresize.jpg

  5. #5
    Why not call the shop and ask?
    $190 would be an average price for conventional balancing. You would have to have just the right crank w heavy counter weights and a super light piston and rod assembly to not have heavy metal ($$)involved.

    Dave Koehler
    www.koehlerinjection.com

  6. #6
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2005
    Location
    Tell City, IN
    Posts
    356
    Internal balanced sbc is just like a 350 as far as balancer and flywheel.


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