Manual Valve body questions

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    Author Topic: Manual Valve body questions  (Read 3673 times)

    Offline joepharaoh

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    Manual Valve body questions
    « on: February 12, 2002 - 05:45:28 PM »
    Hello,
    After rebuild the 440 last year, I am now considering upgrading the 727. I have little knowledge about tranny improvements so this is where I am being a student. I heard a lot of good about installing a manual valve body. In the MP cataloge, it lists a reverse pattern valve body. What other makes are good? Other than shift differences, what are the advantages of having a reverse pattern vs. having the stock pattern?? I know that once you install a manual valve body, there is no need of the kickdown lever, right? Also, what limitations do I have after installing the valve body?? Going just by what I have heard, if you install a standard shift pattern valve body, it limits your burnout time because of band stress??? Not that this is important, I am just using this as an example. Like I said, I am not too familiar with transmission improvements, so any advise and help is always appreciated.
    TIA, ;D

    Joe
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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    Offline WedgeHead

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    Re: Manual Valve body questions
    « Reply #1 on: February 12, 2002 - 06:40:13 PM »
    I don't know very much about the Manual valve bodies, but I knew of guys who used them and liked them.

    You MUST shift them Manualy! I didn't have the cash for one when I built my Big Block Duster, so I kept the stock valve body and found all the right kickdown linkages by mixing and matching from the wrecking yard. I had my tranny professionaly rebuilt with a Trans-Go Stage II shift kit installed. (Street/Strip). It shifts pretty hard, but not quite as hard as a full manual.

    The idea behind both are to shift quicker and prevent any slippage (heat generation) of the bands, thus prolonging the life of the bands and clutches. I also added a deep tranny pan from Mopar Performance and a tranny cooler. Have not had any problems in 10 yrs!!!

    You should/need to also change your tranny oil and filter every season under hard use. (i.e. Drag racing and trailer Towing). You will see fine brass filings when changing, but this is normal. Make sure nothing larger than small filings come out!!! Under "normal" street driving you can change the oil and filter every 2 years.  ;)
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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    Offline Chryco Psycho

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    Re: Manual Valve body questions
    « Reply #2 on: February 12, 2002 - 09:54:39 PM »
    the manual valve bodies are great if you don`t mind shifting all the time the advantage of the reverse pattern is that you are shifting away from neutral & reverse & cannot accidently shift into either  Turbo Action & JW make good manual valve bodies among others. If you have the slap stick it is very reliable for not missing shifts & shifting too far. The main enemy of autos is Heat which is caused by towing, slow smooth shifts, the softer it shifts the slower the bands & clutches are being engaged which causes wear, & lastly stall converters which allow a lot of slip & generate a lot of heat so run a deep pan as suggested & an aux trans cooler, the larger the better ;) ;)     & No kickdown is required with a manual valve body.
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    Offline 69ChargerRT

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    Re: Manual Valve body questions
    « Reply #3 on: February 12, 2002 - 09:58:23 PM »
    Simon has a Cheetah setup on his charger.  id always rather have a 4 speed, but i didnt quite enjoy driving that tranny.  if i had to do an auto id do it that way for sure
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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    Offline rt-se

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    Re: Manual Valve body questions
    « Reply #4 on: March 02, 2002 - 12:57:44 PM »
    I ran a manual auto on the street for many years, it
    was a transgo thIII kit standard pattern. You have
    a choice weather to use the linkage or tie the linkage
    back. With it tied back it shifts very hard all the time.
    better to use the linkage for street use.The linkage is
    also throttle pressure valve,regulates how hard to shift
    Never used the replacement valve body so I dont know
    if you still need the rod.BM also makes a kit.You need a
    good shifter,I prefer a ratchiting shifter. Also install good
    clutches and bands and overhaul the trans.Manualauto
    will kill a weak trans.They are fun though,chirp the tires
    all shifts!    Have fun!!
    « Last Edit: December 31, 1969 - 07:00:00 PM by 1023595200 »
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