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Will a 5.9L short block diesel fit in a 91 Wrangler?

Discussion in 'Wrangler YJ (1986-1995)' started by ryan1, Aug 23, 2021.

  1. Aug 23, 2021 at 9:17 AM
    #1
    ryan1

    ryan1 [OP] New Member

    Joined:
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    1991 Jeep Wrangler
    Will a 5.9L reman short block diesel fit in a 91 wrangler?
     
  2. Aug 23, 2021 at 11:42 AM
    #2
    Groundfault

    Groundfault Well-Known Member

    Joined:
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    First Name:
    Tim
    Vehicle:
    87 Wrangler, kind of...
    5.7 V8 with Whipple Supercharger, TH350 w/B&M Shifter, NP205 TC, Dana 60 front 4.56, GM 14 bolt 10.5 rear 4.56, 4 wheel discs, Bilstein shocks, 6" lift on 37's, Autometer gauges, all led lighting and a few other things.
    Its been done before, so if money is no object. 5.9 is an 1150 lb engine so you're looking at extensive suspension mods including a Dana 60 front and rear axles. minimum. Also looking at a 47/48 RE or manual transmission, transfer case and drive shafts. Minimum 3" exhaust, mods for oversized radiator, intercooler, oil cooler, hood, etc.,etc.,etc.
    Nothing under a YJ is heavy duty enough for a 5.7 V8 and definitely not the 5.9 diesel.
    It's a wicked cool build, but in my opinion (for what that's worth), it would be easier to pull the body off a dodge truck and modify the frame to accept the YJ tub.
    If you decide to go for it, please post some photos of the progress.
     
    Bob, ryan1[OP] and aggrex like this.
  3. Aug 23, 2021 at 4:54 PM
    #3
    ryan1

    ryan1 [OP] New Member

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    Ok thank you for all the good info.
     
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