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  • 304 or 360?

    Hey guys I bought a 74 CJ-5 and I can't tell if its a 304 or 360. The vin is J4F835TH30866. The guy I bought it off of sayed it was the original V6 it came with but took 8 plugs. Did they even make V6's back then? I really don't think I can get any accurate info from him.

    Anyway no ID numbers on motor at least any I could find. I can't really see a differance in the 360 and the 304.

  • #2
    They made a 225 V6 before that.
    But if you found a place for 8 plugs It anit a 6
    kidding
    any way most of the outside parts can be used on the 304 on up.
    the block I belive is the same just a boar differance hence more ci.
    I will go through the pictures I took during the redo on my 304 and see if there is somoething that can help.

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    • #3
      Should be a 304, 360's only came in fullsized jeep trucks and such. No exterior differences though.

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      • #4
        On the block you will find the numbers stamped in it. 304 or 360. I can't remember where but look on the side of the block, it is there, you might have to be on a roller looking up.
        360 never came in CJ's. The 304 was the largest engine that went in at the factory.

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        • #5
          Yeah,
          They are one both sides of the block under where the headers would come down. They are big numbers that are cast into the block. You can't miss it.

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          • #6
            Originally posted by adamcj-5
            You can't miss it.
            but he did lol

            adam is correct. big numbers on the side will read 304/360/401. if they're not there, you may have an sbc or ford engine.

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            • #7
              I found the pictures but it looks like you got your awnser.
              on the top part of the block just about center there is a 304 in the casting
              By the way congrats on the new 2U ride looks great

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              • #8
                the cast numbers will be right under the block mount for the motor mount
                http://img.photobucket.com/albums/v3...7/IMG_0503.jpg

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                • #9
                  Thanks

                  I had to pressure wash it to see. about .5'' thick oil build up. Thanks guys

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                  • #10
                    Hey Fuzz nice looken 401 is it running yet?

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                    • #11
                      still working the bugs out of it put it this way pumping up the brakes and holding the brakes @ 1500 rpm it is spining the 36" swampers

                      http://photobucket.com/albums/v31/fu...slideshow=true
                      Last edited by fuzz401; 02-17-2005, 12:23 PM.

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                      • #12
                        Fuzz,

                        I am in the need of a new motor in the not too distant future. It is obvious you have done a lot of the work on that motor, where did you buy it? What work were you able to do? I am located in near Collegeville or King of Prussia are not far from you and would be interested in a quality engine from a quality shop.

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                        • #13
                          GEEP
                          i bought the motor took it apart and cleaned every thing up took it to a machine shop in jersey to a guy that knows AMC motors he did all the machine work and I put it back together when you are ready let me know and I can help you get your's done

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                          • #14
                            Good to know Fuzz. Thanks.

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