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4.0L in a flatty?

Discussion in 'Flat Fender Tech' started by junkfood, Jul 6, 2007.

  1. junkfood

    junkfood Member

    Just playing in my mind. What would it take to put a 4.0L in a flatty? Extend the hood area/frame ~ 10"? Like I said, just running it through my mind. Had a friend offer me a good 4.0 for cheap.
    Keith
     
    junkfood, Jul 6, 2007
    #1
  2. w3srl

    w3srl All-around swell dude Staff Member

    I don't think it will fit, even if you hacked the heck out of the firewall. (That's why AMC extended the front clip on the intermediate CJ's)

    A Buick 225/231 or Chevy 4.3 V-6 makes for a much cleaner (and cheaper) swap, especialyy when you start to look at little things like driveline components. ;)
     
    w3srl, Jul 7, 2007
    #2
  3. Dummy

    Dummy I kick hippies

    Dummy, Jul 7, 2007
    #3
  4. Sledgehammer

    Sledgehammer Sure, I'll try it

    Sledgehammer, Jul 7, 2007
    #4
  5. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    I have seen a Chevy 250 cid inline 6 in a flatty, so I'd expect it could be done. Not without significant firewall mods. However, a modern inline 4 or V6 will be a much, much easier swap.

    There are some transmission compatibility reasons why you might want to use a) a Studebaker inline 6, or b) a Ford 144/170 inline 6, but they aren't compelling today IMO. No easy way to adapt an AMC inline 6 though.
     
    timgr, Jul 7, 2007
    #5
  6. junkfood

    junkfood Member

    I know it would be difficult, and really had no intention of doing it. I was just playing with the idea and wondered what ideas everyone else could come up with. IMHO the I-6 is the single best motor Jeep ever used and it would be nice to "fit" one into my favorite Jeep model.
    Keith
     
    junkfood, Jul 7, 2007
    #6
  7. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    The AMC 150 is derived from the AMC inline 6s, and the '91-on engines have the same or similar MPI as the 4.0L - basically 2/3 of a 4.0L HO. It too is a very good engine, from what I've heard. That would be a much better swap to a flatty IMO.
     
    Last edited: Jul 7, 2007
    timgr, Jul 7, 2007
    #7
  8. Boyink

    Boyink Super Moderator Staff Member

    Find a nice old Rambler to swap it into...;)
     
    Boyink, Jul 7, 2007
    #8
  9. junkfood

    junkfood Member

    Never seen "nice" and "Rambler" used in the same sentence before......:D
    Keith
     
    junkfood, Jul 7, 2007
    #9
  10. Boyink

    Boyink Super Moderator Staff Member

    Here's a pic of the 1966 Rambler Classic 770 I owned for a few years. I always thought it was a classy,sharp looking car -- and had many comments to that effect. Usually people my age (39) and younger had no idea it was a Rambler and thought it was anything from an old Fairlane to a Impala.

    This car had the 232 I6, and if I wasn't into Jeeps would have looked into a 4.0L swap as a repower.
     
    Boyink, Jul 7, 2007
    #10
  11. junkfood

    junkfood Member

    That's a nice clean looking Classic. Rambler had some nice, and fast, cars. I was just giving you a hard time. I even owned one or 2 and always wanted a AMX.
    Keith
     
    junkfood, Jul 8, 2007
    #11
  12. jd7

    jd7 Sponsor

    had one once, someone else did the swap was kinda popular once
    I'd like to try that makes a lot of sense to me.....
     
    jd7, Jul 8, 2007
    #12
  13. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    A pre-71 232 is not the AMC bell pattern, so the 4.0L would not have bolted up. You could use the case from a Jeep TH400, TF999 or TF727 and made a 2WD transmission that would work - a Jeep AW4 could maybe be converted to 2WD; IIRC Toyota used them.

    Assuming it's an automatic... just a comment.
     
    timgr, Jul 8, 2007
    #13
  14. Boyink

    Boyink Super Moderator Staff Member

    Doesn't matter anyway...the car's been gone for over a year...R)
     
    Boyink, Jul 8, 2007
    #14
  15. junkfood

    junkfood Member

    I used to have a Comanche pickup with the 4 banger, if that's the one your talking about. That thing had plenty of power.

    Keith
     
    junkfood, Jul 8, 2007
    #15
  16. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Yep, I knew that. Thought you might be interested. :coffee:
     
    timgr, Jul 8, 2007
    #16