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Slant Six possibilities?

Discussion in 'Early CJ5 and CJ6 Tech' started by jbrucru, Mar 5, 2012.

  1. Mar 7, 2012
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
    Joined:
    Sep 10, 2003
    Messages:
    2,071
    if you had a jeepster or wagon, cool swap. early 5 not so much. would go :v6: or iron duke 4 banger.

    a poncho slant four could be an interesting swap as well. it's half a 389.
     
  2. Mar 7, 2012
    duffer

    duffer Rodent Power 2019 Sponsor

    Bozeman, MT
    Joined:
    Sep 17, 2009
    Messages:
    2,683
    I have to agree that this is another "just because you have it" situation. If it is already set up for a small block Chevy, that will by far be the cheapest install- and IMO, the best install. Another 305 wouldn't be a bad choice. With the right cam and the long stroke, should make very good Jeep power, especially if you can find a TBI version. These should even be cheaper than a 350.
     
  3. Mar 7, 2012
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,449
    Just another potential issue with the slant 6... the oil pan sump might need to be moved/pan modified... I can't remember if they are front or rear sump.

    I'm with the SBC crowd; you already have a head start on it.
     
  4. Mar 7, 2012
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    4,614
    Even with 3 225s in my shop, if I could find a 4.3 like that around here, I would jump on it. In the end, I think it would be less work and probably less $ to put it in even with a 'free' engine. All that little stuff to make something fit really adds up.
     
  5. Mar 7, 2012
    Long&Low

    Long&Low Active Member

    Geauga County, OH
    Joined:
    Dec 13, 2009
    Messages:
    1,193

    I completely agree, I think a 4.3ltr is an ideal swap. Especially when you consider the remainder of your drivetrain options.
     
  6. Mar 8, 2012
    jbrucru

    jbrucru Member

    Glasgow, KY
    Joined:
    Jun 15, 2011
    Messages:
    148
    In that case, I'll give the guy with the 4.3L the call. I suppose I can hook up the TBI without too much difficulty.
     
    Last edited: Mar 8, 2012
  7. Mar 8, 2012
    jwjeep60

    jwjeep60 in process

    Sedalia Mo.
    Joined:
    Apr 8, 2008
    Messages:
    561
    be very specific when discussing a 3.8l engine, because there are several very different engines at 3.8l ;)
    i would go 4.3 if you need tbi, adjusting a tbi to the lower displacement might not be fun making the computer happy,
    i don't know if the 229 semi odd hei reluctor wheel can be used with the tbi distributor. you might need to convert the 4 pin hei distributor to hold the 7 pin module as well as disable the mechanical and vac advance

    but the non vortec tbi manifold should fit the Chevy 229. and my 200 manifolds fit after one bend was removed.
    Here are some pics, everything but the motor mounts worked out well, I can't take fresh pics because it's not with me this semester.
    the biggest difference a 4.3 has is the lack of a fuel pump, and a smaller tbi distributor,
    http://www.earlycj5.com/forums/showthread.php?70907-Rebuild-for-quot-miles-quot/page5
     
  8. Mar 8, 2012
    mb82

    mb82 I feel great!

    Charlottesville Va
    Joined:
    Mar 17, 2003
    Messages:
    2,715
    X2.
    Also make sure that if you are looking at a 4.3 make sure it is a 4.3 and not a Semi even fire 229. DAHIK :rofl:
     
  9. Mar 8, 2012
    jbrucru

    jbrucru Member

    Glasgow, KY
    Joined:
    Jun 15, 2011
    Messages:
    148
    I'm an idiot. Must have been too late at night when I was typing that. The guy has a 4.3L 262 TBI, not a 3.8 229.
     

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