Is Jeep Liberty 3.7 L engine a slant 6?

Discussion in 'General Motoring' started by Jim, May 4, 2004.

  1. Jim

    Jim Guest

    Earlier in the day, I was behind a Jeep Liberty at a stop light. I noticed
    a "3.7 liter" emblem on the rear. My 76 Plymouth (Ohhhh the Plymouth name
    brings back nostalgia!) Volare had a 225 CID 3.7 l slant six engine. I got
    goosebumps at the light at the mere thought of the slant 6 being
    resurrected. I guess the 64000 dollar question is.... Is hte Liberty
    equipped with the slant 6 engine?????

    My grandpa owned a 63 Valiant with the slant 6, my uncle owned a 78 Dodge
    pickup with this powerplant, my cousin had a 72 slant 6 Plymouth Duster with
    this legendaty powerplant. I will be elated if the slant 6 is back in
    production! Thanks!
     
    Jim, May 4, 2004
    #1
  2. Jim

    N.Cass Guest

    I guess the 64000 dollar question is.... Is hte Liberty

    Nope, it is a v-6 engine. I believe it is the same one DCX uses in the
    Rams, Dakotas, and Durangos. This 3.7 V-6 is a new design, which
    replaced the old 3.9 V-6 that was based off of the 318 design.

    Sorry to burst your bubble......
     
    N.Cass, May 5, 2004
    #2
  3. Jim

    Steve B. Guest

    The Liberty engine is the 3.7L PowerTech V6. No slant 6 to be found.
    The length of the engine and as I understand getting it to meet the
    emission standars of the time are what killed the engine. It would be
    nice to see the old girl come back again but I don't think it will
    happen.

    'course I never thought there would be another decent sized
    convertible with a real engine but Chrysler is promising a 300C in
    convertible form so who knows what the future holds.

    Steve B.
     
    Steve B., May 5, 2004
    #3
  4. That's not *quite* the whole story, but almost. The Slant-6 was permitted
    to die a slow, undignified death by strangulation. Its combustion chamber
    and induction system could well have been substantially updated to meet
    tightening emissions standards with increased performance, and various
    promising experimental variants were built (OHC, new combustion chambers,
    new 246cid displacement, etc.) but none of these was released.

    More's the pity.

    DS
     
    Daniel J. Stern, May 5, 2004
    #4
  5. Jim

    Steve Guest


    Lack of attention killed and cost-cutting it. If it had been given the
    same sorts of upgrades in head design, valve-train design, etc. that the
    318 got, it would have lasted at least as long as the 318 did and might
    have been the I-6 of choice during the 90s instead of the Jeep-inherited
    4.0 (which itself is an excellent engine, no slam against it). The move
    toward the 3.9 back in the 80s also meant that the /6 assembly line
    could be shut down, and common tooling and parts could be used to
    produce the 5.2 (318) v8 and the 3.9 v6, which is just 3/4 of a 318.
    They shared pistons, rings, valves, connecting rods, water pumps, timing
    gears, rocker arms... the only differences are heads, blocks, cranks,
    distributor, ECM software, and manifolding. It was a cost-saving venture.
     
    Steve, May 5, 2004
    #5
  6. Jim

    Guest Guest

    The 3.7 in the Liberty is a V6 which is the 4.7 V8 used in the Grand
    Cherokee, Ram, etc. with two cylinders missing.
     
    Guest, May 18, 2004
    #6
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