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Mopar 318/360

Discussion in 'Early CJ5 and CJ6 Tech' started by Jrobz23, Mar 21, 2017.

  1. Mar 26, 2017
    daddyusmaximus

    daddyusmaximus New Member

    Indiana
    Joined:
    Feb 7, 2017
    Messages:
    28
    I "know a guy" with a Dodge 360 in a CJ5... Me. Problem is I can't offer you much in the way of advice on the swap as it was done by a PO and I just got the Jeep in Jan. It has a Torqueflite 727 trans and the original Dana 20 transfer case. Strong running engine but I only get like 8 MPG with 4.88 gears and 33s. It's an older engine with a Holley 4 barrel headers, and MSD ignition. Supposedly, the full width Dana 44 and 9.25 axles came out of the same truck.

    [​IMG]
     
  2. Mar 29, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    Oct 3, 2016
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    938
    Very cool! I love the valve covers. Is the front cross-member in tact? Can you get a picture of the front clearence?

    Also, what year CJ5?
     
  3. Mar 29, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
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    938
    Scratch that, found the other pics. Neat Jeep! Thanks for postin!

    Fits like a glove in that later 5. I'd love to see pics of one in an early 5.
     
  4. Mar 31, 2017
    Boodie

    Boodie Boodie

    TOLEDO, OHIO
    Joined:
    Jul 4, 2006
    Messages:
    95
    I am in the middle of putting the AMC 360 (NOT Dodge 360) in my CJ-5. I obviously got rid of the weak T4/D300 and replaced it with the stronger T150/D20 combo. Nice having everything bolt right in with no mods.
     
  5. Apr 2, 2017
    Welderr

    Welderr Member

    NW New Jersey
    Joined:
    May 29, 2015
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    78
    I have given some thought to a Mopar 3.9 v6 it's to the 318, what a Chevy 4.3 is to a small block . There are tons of them out there in Dakota's and Durango's. We had one in a D100 at work and it was a nice little engine.TJ
     
  6. Apr 3, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
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    938
    I tried in vein to find a 4bbl manifold for the Magnum flavor of this engine (same as pre-magnum?). Also, I'm a bit torn on it. In one hand, I can share a trans with my truck. In the other hand, I might as well find a 225 and run the T90 I have in stock location.

    That being said, it appears to be a solid power plant and very comparable to the excellent 4.3.
     
  7. Apr 9, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
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    938
    Just confirmed on the stripped down Magnum 318 in my garage. If you take the fan off, it's 27.5" long. So, as I thought, the Magnum water pump and the new belt setup is much shorter than the LA setup.

    A serious gothcha will be the driver side starter.
     
  8. Apr 9, 2017
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
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    2,793
    Where does the distributor sit? Front, or rear. Been a while since my last Dakota got wrecked (Some BOZOs should not be allowed out of Klown Kollege) and I don't remember.
     
  9. Apr 9, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    Oct 3, 2016
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    Rear. Right about where the SBC has it.
     
  10. Apr 9, 2017
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    5,284
    The beauty is the distributor is way smaller than the Chevy and shorter.
     
  11. Apr 10, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    I may end up pulling the F134 out of the 57 and putting it in the 61. If I do, I'll try a test fit of the Magnum 318 with the 435 on it.
     
  12. Apr 11, 2017
    Stout

    Stout Member

    Quakertown, PA
    Joined:
    Nov 1, 2010
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    958
    As a Mopar fan, I think doing a 318 or 360 swap would be way cool. I've owned vehicles with both motors and they are great. I once knew a guy back in the '80s who built a T-Bucket for drag racing and had an old Mopar small block in it. He said every T-Bucket in the world has a SBC and he wanted his to be different. Won a ton of races, too.
     
  13. Apr 11, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
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    7,520
    The only thing that would be cooler than a 360 would be a 340.








    Unless it was a 440.








    Or a 383.








    Maybe a Firedome














    You could always try to fit a 426 Hemi in there:whistle:




    H. :D
     
  14. Apr 11, 2017
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    Sep 22, 2002
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    That engine bay would never fit an elephant engine. Probably wouldn't fit between the frame rails.
     
  15. Apr 11, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    Oct 3, 2016
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    938
    A BBM would be way overboard in a 5, but I'm sure it'd be entertaining.

    The Magnum 318 is pretty close to the 340 in many regards if you check the specs, and actually superior in a couple ways. I know the 340 was hot stuff when it was out prowling the streets, but the nastalgia carries a serious price tag with it. The 90s 318s are basically free lol.
     
    Last edited: Apr 11, 2017
  16. Apr 11, 2017
    Rich M.

    Rich M. Shoe salesman 2022 Sponsor

    Maryland
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    Mar 23, 2008
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    1,599
    There's flattys with Buick 455's. Pretty wide...
     
  17. Apr 11, 2017
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    Still narrower and shorter than a hemi. There's a reason they call them Elephant motors. At 29" wide, 32" tall and 32" long and 690lbs its a beast compared to all other big blocks but maybe the Boss 429, its bigger than the 500 cadillac engine.
     
  18. Apr 12, 2017
    Stout

    Stout Member

    Quakertown, PA
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    Nov 1, 2010
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    958
    What about an old Mopar Slant 6? Talk about an indestructible engine. Not sure how obtainable they are but I remember giving one away many years ago.
     
  19. Apr 12, 2017
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    The leaning tower of power! Great engine.
     
  20. Apr 12, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
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    938
    They are well loved, but if an I6 would fit, I'd use a mechanical swapped (Clifford Intake and 258 dist) Jeep 4.0L all day and twice on Sunday. Very partial to the AMC I6.

    I got some farting around to do outside now that it's getting nice. Maybe I can get some fitment pics this weekend.
     
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