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Thread: 90 xj

  1. #1
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    90 xj

    hey guys its been a while! me and my roomate are taking his 90 xj replacing the motor he blew with a 90 mj motor that has a factory rebuild and bore 40 over we are replacing head, intake and cpu with h.o from a 95 and than building the bottom end with after market components is there anything im missing from the h.o? and what kind of issues will we encure? i hope some one has done this before.
    If you've gottem smokem!!
    89 Waggy 5.5 rubi express 32's

  2. #2
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    a couple pics
    Attached Thumbnails Attached Thumbnails 100_3713.jpg   100_3714.jpg  
    Last edited by 91jeepcomanche; 08-21-2008 at 08:12 PM.

  3. #3
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    if your keeping the original wiring, will you be able to use the HO intake manifold? you may run into a problem with the throttle body having different connections. The Renix (early years) are 3 bolt and the sensors mount differently than the 4 bolt HO throttle body.

    If you have already figured this out, and your already doing this much work, why not grab a 99 intake manifold for another upgrade. check it out http://www.go.jeep-xj.info/HowtoIntakeManifold1.htm
    insert something witty here

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