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Which AMC 360 engines would fit my 1990 GW?

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  • Which AMC 360 engines would fit my 1990 GW?

    Hello all,

    Sadly, last weekend I've blown the engine of my 1990 Grand Wagoneer, so I'm looking for a replacement engine. I've posted a classified on the Dutch Jeep forum for a 360 AMC engine, and so far I've had two responses.

    Since I have been offered engines from 1978 and 1979, I'm wondering whether these would fit my car. I know quite a bit about Wagoneers (as in: I've read a lot of forum posts and articles), so I've read that as for engine specs not much has changed over the years since 1978, but I'm not a mechanic.

    In short my question is: could I fit a AMC 360 engine from 1978 or newer into my 1990 Grand Wagoneer? I do obviously have a different transmission than some of the older models but I guess that should'nt be a problem.

    Thanks in response for replying. If there are any other things to take into consideration I would be happy to hear from you. Any help is appreciated!

    Regards,
    Jacob
    1990 Grand Wagoneer

  • #2
    yes all model 360 amc V8 are the same only difference over the years are the intake and exhaust manifolds
    87' Grand Wagoneer
    401/727/229, Currently:RUNNING
    84 J10/20 hybrid 258/727/208 Daily Driver
    80' J10 4BT/AX-15/208
    74' J10 Go Grabber Green Sold
    Originally posted by Heavy_Metal_Thunder_81
    Inferior Chevy

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    • #3
      all of em,with the possible exception of the very early ('71-72) engines due to a possible different crank flange.
      Originally posted by Hankrod
      Ristows right.................again,


      Originally posted by Fasts79Chief
      ... like the little 'you know what's' that you are.


      Originally posted by Fasts79Chief
      I LOVE how Ristow has stolen my comment about him ... "Quoted" it ... and made himself famous for being an ***hole to people. Hahahahahahahahahha!
      → Where the kids hang out...

      fsjbuilder.org come for the mindless chat,stay for the hand drawn emoticons.

      It's like you're unraveling a big cable-knit sweater that someone keeps knitting...and knitting...and knitting...and knitting...

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      • #4
        Hi,

        @mattmopar440
        I guess that since my exhaust manifolds are still intact, I could re-use those? I'm not sure about the intake manifold though, as the engine has overheated. Is that something to take into consideration if I wanted to keep the original carburettor? I have an LPG system installed so keeping it could be important.

        @Ristow
        I have looked for remanufactured engines (ofcourse, and it's still an option) and I guess I remember one of the sites mentioning that, but I think engines as old as that will probably have too high a mileage to really consider in my case.

        Thank you both for your help!
        1990 Grand Wagoneer

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        • #5
          Don't forget to remove the TH400 crank bushing if you get a pre-80 360,
          and there might be some accessory bolt size differences that are easy to wok though.
          -----------------------------------------
          Home of ADHD project list

          1977 J-10 Honcho 360-T15-D20
          1977 Cherokee WT 360-Th400-NP241 true-trac(s)
          1979 Cherokee 4 Door 258-T-18-D20
          1981 Cherokee Chief WT 360-727-NP208
          1972 K20 Suburban 350 SM465 205
          And the other stuff that gets driven
          ----------------------------------------

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          • #6
            Wow! So great to see such useful replies posted in such short time

            I'll make sure to tell my mechanic when he swaps the engine, mdill. Thanks!
            1990 Grand Wagoneer

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            • #7
              And welcome to the forum!
              Jeep Grounds
              RRV Homepage
              Texas Full Size Jeep Association
              1987 Grand Wagoneer
              AMC 360/TF727/NP229
              1999 Wrangler Sport
              4.0L/AX-15/NV231


              ?Freedom is never more than one generation away from extinction? by Ronald Reagan.


              Formerly of DFW/Gun Barrel City, TX - eventually to return...

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              • #8
                how exactly did you 'blow' your 360? Is there a whole in the block? I feel like with proper maintenance these motors would be impossible to completely destroy. I mean eventually you will start loosing pressure in the cylinders.

                Did you run it dry? I.e did your oil pump go and you not notice?
                Austin

                1991 Hunter Green Grand Wagoneer
                5.9 2bbl-727-NP229-TFI-30x9.5 Firestone M/T's-Brush Guard-tire mount
                SOON: 4350 and cast iron intake

                Others:
                -1994 Baby Grand
                -2000 XJ cherokee on Tons
                -1953 REO M35A2 6x6
                -1955 Willys Pickup



                Originally posted by rustywagoneers_com
                i am not an addict, i can stop anytime.
                i dont have a problem, you people have the problem.

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