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  • 1 Post By Driver50x

Thread: Quick BBC build

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  1. #1
    TheKarStop is offline CHR Junior sMember Visit my Photo Gallery
    Join Date
    Sep 2021
    Car Year, Make, Model: 1978 GMC C-30 crew cab dually

    Angry Quick BBC build


    Ok guys this is my first , I'm called OG cause of my age but I've come across a BBc build that I had to rush on and now I can't get her to fire! Quick build meaning disassemble and install new bearings, cam, crank, and rods, plus rings, set in a gear drive instead of chain, but my timing mark at TDC doesn"t match any tab on timing cover . This block is a Gen V or VI because of single rear main plus a 6 bolt timing cover made out of plastic. also not sure of harmonic balancer being correct Gen! THe thing is she won't start, any and all advice is greatly accepted!!!! Thank you.....

  2. #2
    Driver50x's Avatar
    Driver50x is offline CHR Member Visit my Photo Gallery
    Join Date
    Jul 2016
    Saint Petersburg, Florida

    You can use a piston stop that screws into a spark plug hole to find out exactly where top dead center is. You can make a new mark on the harmonic balancer if need be so that you can use your existing timing tab.
    Dave Severson likes this.

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