Hello, Allpar Forums member or visitor! If you were a member, you would not see this ad!

Register or log in at the top right of the page...

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Engine/transmission Bell Housings

Discussion in 'Repairs, Maintenance, Help' started by TWX, Aug 19, 2009.

  1. dana44

    Ad-Free Member

    Joined:
    Jun 17, 2002
    Messages:
    19,326
    Likes:
    1,238
    What pattern does the 3.8 in the Jeep Wrangler use? Is it the A/LA/Hemi pattern or a different one? This would be the perfect enigne for the Triumph (narrow, light, able to build some decent power). I won't be able to use the 42DCOE carbs, but oh well, I should be able to get an easy 300hp out of this new stronger engine without too much difficulty.
     
  2. plypete

    plypete Member

    Joined:
    Jan 7, 2005
    Messages:
    233
    Likes:
    0
    Just a note on pre 62 torqueflites. Although the bell housing may bolt up to the block on the on the later counterparts, (LA, B, RB) engines, you would also need to have a pre-62 crankshaft in the later year engine. Before 62, (cast iron torqueflites) there was no flex plate used. They had an eight bolt flange on the crank that bolted directly to the torque converter. I believe the distance the crank flange protrudes from the back of the block differs by about an inch also.
     
  3. dana44

    Ad-Free Member

    Joined:
    Jun 17, 2002
    Messages:
    19,326
    Likes:
    1,238
    Let me see if anyone can give the answer to this one.

    The 3.5 in the 300/charger sedan has a RWD auto behind it, but is it the same bolt pattern as the 5.7 Hemi tranny, or is it different? If it is the same, then I would assume, also, that the manual tranny would work behind it also?
     
  4. dana44

    Ad-Free Member

    Joined:
    Jun 17, 2002
    Messages:
    19,326
    Likes:
    1,238

    This is good news, thanks. TWX, the front page needs updated accordingly, and totally good news!
     
  5. digitalrailroader

    digitalrailroader Active Member

    Joined:
    Jul 24, 2008
    Messages:
    1,081
    Likes:
    2
    Well, the number cast on my Bellhousing is 515-AA, but My A-604 did not have that smaller number cast on it.
     
  6. RogerDodger

    RogerDodger New Member

    Joined:
    Mar 6, 2007
    Messages:
    4
    Likes:
    0
    Hi, this is my first time replying to anything here. I hope that I'm doing it right. In reference to this statement:"Also keep in mind a 5.2/5.9 Magnum engine in a Jeep is a different bolt pattern than the same engine in a Dodge truck or van".
    My son installed a 5.2 magnum from a 1994 Jeep Grand Cherokee into his 1983 Chrysler 5th Avenue. It bolted right up to the original 904 transmission in the car. The only thing he had to do was cut notch in the bell housing for the crank sensor.
     
  7. valiant67

    valiant67 Rich Corinthian Leather
    Level III Supporter

    Joined:
    Jan 7, 2003
    Messages:
    31,680
    Likes:
    10,954
    I believe you are right, the engine does not change, only the transmission does. The Jeep transmission has the starter on the opposite side from the Dodge trucks.
     
  8. draziw_one

    draziw_one Member

    Joined:
    Sep 17, 2009
    Messages:
    1
    Likes:
    0
    I have a 2000 Intrepid which now has a 1999 3.2 in it. Had the 2.7 originally and we all know the horror stories about this engine, but this is not what I'm posting. I have 2 projects in mind and one being is to make my car into a rear wheel drive. I've been looking for an adapter or some sort of tranny setup to allow me to do that. Prefer a standard over an auto but if auto is the only way, well.....and the second idea is to make this a mid engine car by moving everything forward back so that the trans lines up with the rear wheels. The logistics says that the first project would be the easiest but I'm not always being about easy :))
     
  9. diesel6DR5

    diesel6DR5 New Member

    Joined:
    May 10, 2009
    Messages:
    2
    Likes:
    0
    Remember the Pontiac Tempest used a rear trans.
     
  10. grem304

    grem304 Member

    Joined:
    Apr 30, 2008
    Messages:
    90
    Likes:
    0
    The 215 aluminum engine of the 1960's was a V8 and was the engine later sold to Rover
     
  11. Marc

    Marc CAT parts wrangler

    Joined:
    Feb 15, 2002
    Messages:
    3,694
    Likes:
    0
    Not sure it's relevant to the discussion but Chrysler also made a Torqueflite 727 to fit International's small V8's - 304/345/392. It replaced the Borg-Warner unit around 1971. They would have been put in pickups, Travelalls, and Scout II's.
     
  12. BlackSheep01

    BlackSheep01 Active Member

    Joined:
    Jul 31, 2003
    Messages:
    672
    Likes:
    8
    augh. does this mean if I can find the 2.2 (running) in the appropriate Dakota I can use that block assembly to replace a broken FWD block?
     
  13. 135SoHc

    135SoHc Active Member

    Joined:
    Jan 27, 2008
    Messages:
    2,791
    Likes:
    0
    I dont see why not ?
    The block in my Shadow is a RWD block. Has the extra (unused) mounting bosses on the front below the distributor.
     
  14. Wraithls1

    Wraithls1 New Member

    Joined:
    Jan 10, 2010
    Messages:
    2
    Likes:
    0
    I know I am jumping into this discussion a little late but, I have some hands on experience. I have owned both a '96 Dakota and currently own a '95 Dakota, both 2.5 4cyl 5 spds. The '95 indeed has the 2.2/2.5 OHC K-car motor and the '96 had the OHV AMC 2.5 with the AMC/GM 60 deg V6 pattern. Both trucks had/have the same transmission (Aisin AW15). I've read that is fairly stout and was even put behind the V6s and V8s as well. To add another interesting side to this discussion. It is almost identical to a Toyota 5 spd (the R150 I think) the back half is differrent but the Bellhousing pattern (the tranny side, not the engine) and input shafts are the same. So you could swap a Mopar motor into a Toyota that way. I have also heard that the transmission side bell housing pattern interchanges with those in the new Chevy Colorado/GMC Canyon manual 5spds.
     
  15. Wraithls1

    Wraithls1 New Member

    Joined:
    Jan 10, 2010
    Messages:
    2
    Likes:
    0
    Here is a tidbit I picked up from Jeeps-offroad.com:

    "The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed, the Jeep NV1500, the Toyota R150F, R151F & R155F, the 87-92 Toyota Supra Turbo R154, the Isuzu AR5 and the Pontiac Solstice\Saturn Sky\Chevy Colorado\ GMC Canyon MA5 5-speeds all share the same case to bellhousing bolt pattern (Large Pattern)"
     
  16. kcoolestdude

    kcoolestdude Guest

    a413 was the k-car tranny... also a neon tranny with a different bolt pattern. Here's a link to more info... it also covers some more trannys.
    http://en.wikipedia.org/wiki/TorqueFlite
     
  17. t vago

    t vago Active Member

    Joined:
    Feb 17, 2010
    Messages:
    46
    Likes:
    11
    The Mitsu V6 bellhousings are almost identical to the LH V6 bellhousings. The principal differences are that:

    - The starter location was moved downward due to the structural webbing present on the Mitsu V6 block between the bottom left engine bolt hole and the left cylinder bank lower bolt hole.
    - A water channel was cut into the top of the bellhousing, between the left and right cylinder bank upper bolt holes. This was to allow clearance for the Mitsu V6 water pump inlet pipe.
     
  18. ELFASSI

    ELFASSI Guest

    Hi guys

    I am french, i live in Paris and i have a beautiful chrysler voyager model 1989 with full red leather but the reverse gear don't work [​IMG]
    I have a classic A670 auto gearbox with this common problem....
    I would like swap to A604 overdrive that i found to another used voyager 3.0 like mine.

    Does anyone get technical information....(TCC, wirelessetc, EATX...)????
    [​IMG]
    Is it difficult ???


    Regards, Ben
     
  19. KOG

    KOG KOG
    Level 2 Supporter

    Joined:
    Jan 8, 2003
    Messages:
    6,505
    Likes:
    216
    We've replaced 604s with 670s in a couple of 3.0 minivans because the 670 works just as well with the 3.0 (same mileage and performance) and is a lot less expensive to rebuild. Keep your 670 with the 3.0. 3.0 doesn't have enough torque to use the 604 OD to good advantage.
     
  20. mmerlinn

    mmerlinn New Member

    Joined:
    Jun 13, 2010
    Messages:
    23
    Likes:
    0
    From the top these patterns are commonly called the following in the transmission industry:

    • Slant six
    • Big block
    • Small block
    • Chevy
    • S10
    The following commonly-called patterns are not in your list at all.

    • Wide block - Same as the small block except the hole (pilot hole I think) above the starter is moved 1/2". Known to exist for 1964 A727. Probably exists for A904.
    • Baby 904 - Fits the 097L4-16, 122L4-20, 156L4-26 engines in Mitsubishi built Dodge, Chrysler, & Mitsubishi RWD vehicles in the 1970s & early 1980s.
    • Audi - Fits the 121L4-20 Audi engine in RWD AMC cars in 1977-1979. Also found in Postal vehicles, dates unknown.
    • IHC - Fits International vehicles.
    • Omni - Fits the L4-17 Audi engine in the Omni.
    • A470 - Fits the L4-26 engine in minivans.
    • There is also a 904 Diesel pattern 1985-1986 for the 126L4=21 engine. Not sure what it fits, but I think it is Isuzu. No common name in the transmission industry, although if it fits Isuzu, that would be the name.
    • At least one more pattern for Jeeps is found in the A518 series of transmissions. Starter is low instead of at 3 o'clock like most RWD Chrysler transmissions. Might bolt up to a small block, but don't know.

    These patterns fall into the following transmission categories:

    • A904/A998/A999 - Baby 904, Audi, 904 Diesel
    • A727 - Wide block, IHC
    • A404 - Omni
    • A470 - A470


    The GM Metric pattern only came on A904s, not A727s, nor A500s, nor A518s.

    The Dakota pattern has an extra bolt hole below the starter. It will fit any A/LA/Modern Hemi engine.

    The A404, A415, A470, A670, and A962 transaxles are basically identical except for the bell housing patterns.
     

Share This Page

Loading...