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  1. J

    JP

    Tx
  2. J

    JP

    Why im asking. I use a gx 390 block. 66 crank. Arc rod masjined for a 90.5mm briggs piston. 308 cam. No balance crank. Still a blance shaft but masjined. A briggs head. Welded combustion chamber. 39mm intake valve and 34 exhaust valve. Std briggs aliminium rockers. Briggs pushrods. Arc flywheel...
  3. J

    JP

    Hi. Im JP. Im from South Africa. Im in the dirt go kart seen now for 12y. Yes in SA everything is exspensive. So we try do do racing as cheap as possible but try to be the best as we can. I just want to know. Do u guys guts use a briggs 390 head on a honda or clone engine. I dont know ur...
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