4.0 jeep motor

Discussion in 'Other Automotive Tech & Talk' started by JHodges, Apr 12, 2009.

  1. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    My uncle has an 87 cherokee that has a 242ci motor and a 5spd. It is in pretty rough shape and he is wanting to make a cutdown of sorts out of it to run in the fields. He asked me if there was a points distributor available for this motor since he doesn't want to mess with the electronic ignition. Thanks for any help
     
  2. facelessnumber

    facelessnumber Drew Pittman

    Joined:
    Oct 4, 2007
    Messages:
    3,710
    Likes Received:
    30
    Trophy Points:
    157
    Location:
    Memphis, TN
    Vehicle:
    '71 Grabber
    That's funny, really an example of the generation gap... I always switch to electronic ignition because I don't want to deal with points.

    I'll bet there is one of course. That's an ancient platform.
     
  3. Blown 5.0

    Blown 5.0 Hooked on BOOST MEMBER

    Joined:
    Feb 16, 2004
    Messages:
    784
    Likes Received:
    7
    Trophy Points:
    0
    Location:
    MS.
    Vehicle:
    1974 Maverick
  4. CornedBeef4.6L

    CornedBeef4.6L no longer here

    Joined:
    Apr 3, 2003
    Messages:
    5,217
    Likes Received:
    6
    Trophy Points:
    137
    Vehicle:
    no longer here

    agreed!!1!!!!!!!
     
  5. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    thanks, the reason he wants to go to points is for simplicity. He is also wanting to put a 1 barrel on it. I know the electric fuel pump is messed up and possibly some of the electronics. this will only be drove in the pasture.
     
  6. Blown 5.0

    Blown 5.0 Hooked on BOOST MEMBER

    Joined:
    Feb 16, 2004
    Messages:
    784
    Likes Received:
    7
    Trophy Points:
    0
    Location:
    MS.
    Vehicle:
    1974 Maverick
    The 258 manifold will also work on the 4.0 head, I have one on my 87 jeep, Although its a 2 barrell.
     
  7. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    You can swap the 4.2 liter intake and carb set up to the 4.0 if you want. Its a feedback system up here though. Wouldnt wish that carb on my worst enemy. Maybe you can find an older carb for the 4.2 intake.
    Usually goes the other way around here. Junk the 4.2 crap and go with a 4.0 EFI setup. Had 4.0 Cherokees as my daily driver for about 15 years now. Luv em and wish they still built them.
     
  8. markso125

    markso125 Member

    Joined:
    Aug 19, 2007
    Messages:
    1,714
    Likes Received:
    6
    Trophy Points:
    117
    Location:
    Lewiston Ut
    Vehicle:
    1972 maverick 2 door LDO
    Get an early 80's duraspark unit and put in it, heck if you pulled most of the parts off of your car it would work. Dont put one of the garbage carter 2v carbs on it from the 80's you cant get the parts to fix them right anymore so it is not even worth trying.
    You can use the intake and exhaust from all of the earlier amc straight sixes from the 70's they will just sit a little higher than the original did. To give you a good idea of how these motors have changed I bought a 4.0L cam for my 4.2l/4.0l hybrid and it is the same cam for the 4.0, 4.2, and the old 232.

    The best recomenddation I can make on the carb is to go with a weber conversion, there a couple of hundred bucks but well worth it.http://www.webercarbsdirect.com/product_p/wk550-34.htm
    they are a sequential 2v carb so they work under the same principal as a 4v carb and are well worth it.
     

Share This Page