Thinking about a 700R4 or maybe the 200R4

Discussion in 'Transmission & Driveline Topics' started by rocket dawg, Nov 19, 2015.

  1. black_aerocoupe

    black_aerocoupe Veteran Member

    Your second paragraph outlined the issue with the answer to your first.

    There is a 2.64 first gear 700-R4 gearset. But it's not cost effective, compared to just getting a 200-4R.

    The 700-R4 has physically larger, stronger parts.
    The 200-4R has more ideal ratios.

    Since I don't break parts in the latter (non-slicks, know how to set the TV cable and keep fluid/filter changed,) I prefer it over the former. I've run multiple 200-4Rs and multiple 700-R4s in the same car, and still feel that way, decades later.
     
  2. 80sz

    80sz Veteran Member

    1,578
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    Feb 2, 2014
    Buffalo,n.y.
    The 700s 3.06 with a 3.08 rear gear is like a 350 with 3.73 rear
     
  3. rocket dawg

    rocket dawg Veteran Member

    159
    1
    May 5, 2015
    Grand Rapids Mi
    If you had my set-up, what stall converter would you use??, currently I have a 2600 stall and I'm guessing here that it wont transfer over to a 200 or a 700. I dont need a 2600 anyway, 2000-2200 might work better--i run stock size tires all the way around-- its a sleeper till they hear it start, then they say--that aint stock-no way..
     
  4. Fbird

    Fbird Veteran Member Lifetime Gold Member

    2,125
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    Feb 12, 2011
    atlanta, ga
    directly from DA MAN!!

    http://www.turbobuick.com/forums/threads/rebuilding-a-th2004r-is-it-possible.325896/page-2

    Ya know what,
    I'm going to tell some tricks...

    200-4R VB.

    You DON'T need a BR, BQ, CZ, CQ, OZ, or other VB.
    There are better options anyway.

    You WILL spend some time working with governor calibrations to get desired shift points. I'll leave that to the motivated to learn like I did.

    VB mods.

    Drill the 2nd feed hole .093-.125" depending on servo, accum mods, etc.
    Drill the 3rd feed .125-.140.
    4th feed to .096 maximum.

    Remove the line bias spring, install it in the accumulator valve.
    Install a 700-R4 3-4 return spring in the line bias or otherwise block it.
    Install a .500 boost valve, pink 700-R4 pressure regulator spring, and larger reverse boost valve.

    Use a GN or billet servo.

    I use commonly available 700-R4 accumulator springs for the 1-2 and 3-4 accum and calibration depends on the unit but usually I use white.

    You will use 5 checkballs in the case.
    Rule of thumb on a 200-4R. If it's a bathtub it gets a checkball always.
    There are 4 in a line from front to rear. 2 small checkball locations and 2 bathtubs, install in the bathtubs, leave out of the small locations (3rd accum and 3-2 )

    That's it. 600+ HP proven with dual feed and proper hard parts.

    #25
    jakeshoe, Aug 12, 2010
     
  5. Dogwater

    Dogwater Veteran Member

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    Dec 23, 2010
    SanAntonio Tx
    Once you get an auto w/OD you'll love it. I have a 700r4. I read about this GM trans the other day it a 4k85e 4 speed w/OD. It can handle 685 ft lbs of torque, Wow. Direct bolt on to Gen 1 an big blocks.
     
  6. 351maverick

    351maverick Veteran Member

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    Aug 11, 2010
    erie, PA
    I have a 200R4 in my 86 Monte...and I'm going in the opposite direction...replacing it with a TH350 for 5 reasons:

    - I don't do much highway cruising
    - the TV cable adjustment with an Edelbrock carb I never could get right
    - I prefer a simple vacuum operated trans
    - the aftermarket shifter I have is only for a 3 speed
    - the double hump crossmember I have is TH350 not 200R4
     
  7. 76z28

    76z28 Veteran Member

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    Jun 29, 2009
    bakersfield
    ITS HUGE and clunky from what I have researched
     
  8. Skip Fix

    Skip Fix Veteran Member

    1,946
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    Mar 21, 2007
    Katy,Texas
    Also lockup vs non lockup. I know several guys that were lock up and had issues on their 200R and went non lockup convertor and now doing fine.

    I agree 200 has better gear ratios and most new first gears even for TH350s and TH 400s are pretty pricey.
     
  9. Twisted_Metal

    Twisted_Metal Moderator Staff Member Lifetime Gold Member

    24,713
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    Feb 26, 2004
    Bloomington, MN


    And.... A 2004R can be sold for more than a TH350. ;)

    The Monte thinks it's getting another transmission.... The next sound it hears will be a sawzall! :eek:
     
    Last edited: Nov 20, 2015
  10. 351maverick

    351maverick Veteran Member

    2,850
    98
    Aug 11, 2010
    erie, PA
    LOL

    I AM at a crossroads with the car...it'll either get a single quad tunnel ram or I'll part the car out...not sure yet
     

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