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jeep yj

  1. Turbo Upgrade from HX-30

    Performance Discussion
    Hi, so I'm a novice with this performance type of work so excuse any mistakes I might be making and let me know. I have a 4bt in a jeep yj that I went through this winter. It was in pretty rough shape (out of a bread truck), had everything sent out to get machined and am starting the rebuild...
  2. 4bt/nv4500/np231

    Transmission, Adapter, Transfercase Discussion
    hey guys im new to this site so bare with me ha,ok so i bought a 1992 4bt on ebay for a jeep yj swap,ive heard that if you take every thing from a 5.9 12 valve as in adapter,fly wheel,clutch,slave,bell housing,nv4500 that it will all bolt up to the 4bt is this true,and if so what year 12 valve...
  3. Jeep YJ 4bta

    Buildup Showcase Threads - All Engines, Vehicles
    Hello all, So i know this isn't the ideal build thread seeing that i have completed it almost a year ago, but i feel i have knowledge now that i can share with others, so i will do a write up. Currently i have the 4bt in my jeep yj with the ax-15 np231 and dana 35 rear, dana 30 front. I am more...
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