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Alternative Transmission for Early V8?

Discussion in 'Maserati' started by andyleonard, May 2, 2019.

  1. andyleonard

    andyleonard Rookie

    Oct 23, 2010
    37
    We have a mid-60s 4.2 V8 motor with a flywheel and clutch on it but no trans. Other than the hard-to-find original 5 speed and the Chrysler automatic, is there a more modern and appropriate trans that has been fitted? Maybe a ZF from a Corvette?

    Thanks.
     
  2. redfred84

    redfred84 Formula Junior
    Silver Subscribed

    Dec 24, 2010
    263
    Great question! I always thought that since a Chrysler Automatic fits, then perhaps a Chrysler manual bell housing would therefore fit also? Allowing the use of a manual trans then?
    There was a guy who build a special, and he fabricated a bellhousing to suit. Maybe by chopping off the bell housing area of the Chrysler Automatic?
    I'm all ears on this one, as I have an '80 QPIII drive train that I would like to convert to a manual trans.

    Thanks, RF.
     
  3. MK1044

    MK1044 F1 World Champ
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    Nov 6, 2011
    11,240
    NYC USA
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    Carmine
    #3 MK1044, May 4, 2019
    Last edited: May 4, 2019
    It can be done -- but I don't expect you'll find a bolt-on kit.

    Start be selecting a transmission. This will give you an idea of what you can have and what the concerns are for interface between your engine and trans. In Europe or elsewhere, I don't know what your transmission options might be. If you are in the USA, look at Richmond Gear and Tremec.

    One route might be:
    . Select a transmission. Be sure that the input shaft nose is small enough to fit in the engine's crank (or flywheel) hole.
    . Select a clutch that will fit your existing flywheel and new trans.
    . Modify the flywheel to accept the new clutch mechanism.
    . Fab a new pilot bearing to fit the trans input shaft into the engine crank or flywheel.
    . Fabricate a new bellhousing to correctly position the trans to the engine. Consider also the clutch actuator, how it will fit in the engine/trans assembly and in your car.

    So you've got your work cut out for you.

    I advise that you keep looking for the ZF trans that belongs there. (An added benefit is you won't be shamed by the "all original" Euro guys on this forum.) :D
     
  4. MK1044

    MK1044 F1 World Champ
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    Nov 6, 2011
    11,240
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    On my 1975 Khamsin (long gone), the automatic trans was a small case Ford Cruise-O-Matic. The "bellhousing" part would have been made specifically to mate the American trans to the Italian engine. So, no. Not a standard bellhousing.

    (As an aside, I thought about a swap to 5 sped manual as the OP proposes but I never got to it.)
     
  5. andyleonard

    andyleonard Rookie

    Oct 23, 2010
    37
    Well, we've got a leg up on this one as it has the flywheel, clutch assembly and bellhousing on it. So all we really need to do is sort the pilot bearing and clutch splines and then mount and shim the new box on the 4 bolds on the bellhousing. Much simpler than having to match the bolt pattern on the motor.

    But, the question remains; what's the right transmission? I like the idea of using a newer ZF. The original 5 speed never did much for me...and it WAS a converted truck box.
     

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