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Re: 727 with GV o/d or GM 4l60e (4 speed auto)
[Re: ramman5600]
#1148609
02/12/12 01:33 AM
02/12/12 01:33 AM
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Joined: Jan 2008
Posts: 669
Michigan, USA
ramman5600
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 669
Michigan, USA
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Quote:
Quote:
SMR transmissions also offers a "shortie" GV set-up that is only 7 1/4" longer than the stock 727. Less driveshaft angles. No crossmember mods. My personal preference, even owning a GV set up that has not been installed yet is GV. They routinely handle 1200 hp. No worries about the unit itself. Pick your poison, it's all pricey. I would rather keep it mostly all Mopar. Good Luck!
Thanks - I keep flipfloping depending on my mood. Robust 727/GV but no lock-up and only.78 O/D and have to use a manual valve body as I have no way to install a kickdown or lighter electronically controlled setup that can do engine braking, shift manually or automatically, but is maybe not ultimately as tough.
-c 
Any more thoughts out there? I need to get this on order soon. Both are expensive and I realize that, but want the money spent on the best value option.
-C 
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Re: 727 with GV o/d or GM 4l60e (4 speed auto)
[Re: ramman5600]
#1148610
02/12/12 05:14 PM
02/12/12 05:14 PM
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Joined: Jan 2003
Posts: 6,816
Alton, IL
Dakota_Don
master
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master
Joined: Jan 2003
Posts: 6,816
Alton, IL
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Quote:
Pros and cons of each?
Thx.
-C
well for the price of the GV i would go with the 4l60(5)e if its a sb build why not a use an a518 and use the 618 internals sun and planet gears ect..but if you use the 4l60 where can you get the adaptors? id like to put OD auto in my dart and its a small space. I also was thinking of a 200r or a 4l60 with a 318/.040 and a 270h magnum cam with mag heads.. if you do a swap post plenty of pics and mods if any..
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: DaytonaTurbo]
#1148611
02/12/12 05:20 PM
02/12/12 05:20 PM
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Joined: Jan 2003
Posts: 6,816
Alton, IL
Dakota_Don
master
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master
Joined: Jan 2003
Posts: 6,816
Alton, IL
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Quote:
You still need to have a kickdown for the transmission. With the 4L60E it is probably a throttle position sensor because the ecu needs some way of knowing how hard you're pressing the gas.
As for the low first gear, well a heavier car and/or a numerically lower rear end gear ratio like a 3.55 or lower will benefit the most from the steeper first gear of the GM trans.
you can build the 700r4 basically the same insides as the 4l60e and the 700 uses the TV able, if you use the 4l60e you will need the TPS kit and programmer.... the 700 will be a lil cheaper since you will not need a programmer all you will need is the lock up switch or a psi switch to activated the lock up..
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: Dakota_Don]
#1148613
02/12/12 05:30 PM
02/12/12 05:30 PM
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Joined: Jan 2008
Posts: 669
Michigan, USA
ramman5600
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 669
Michigan, USA
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Quote:
Quote:
You still need to have a kickdown for the transmission. With the 4L60E it is probably a throttle position sensor because the ecu needs some way of knowing how hard you're pressing the gas.
As for the low first gear, well a heavier car and/or a numerically lower rear end gear ratio like a 3.55 or lower will benefit the most from the steeper first gear of the GM trans.
you can build the 700r4 basically the same insides as the 4l60e and the 700 uses the TV able, if you use the 4l60e you will need the TPS kit and programmer.... the 700 will be a lil cheaper since you will not need a programmer all you will need is the lock up switch or a psi switch to activated the lock up..
Running a 6.1 L with electronic throttle. So I would use the 6.1L TPS signal for kickdown.
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: Dakota_Don]
#1148615
02/12/12 05:44 PM
02/12/12 05:44 PM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
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master
Joined: Jun 2006
Posts: 5,161
CT
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If you have any power and plan to beat on it the 700R4/4L60-E/200R4 or whatever variation you are looking at will not last, they are fragile even when every aftermarket part available is thrown at them.
Local guy with an ~450 horsepower 396 Chevelle has gone through 3 in 5 or 6 years.
Those F bodies hold up because as long as they're being easy enough on it that that 7.5" rear end can hold up then the tranny is fine too.
Last edited by GTX MATT; 02/12/12 05:45 PM.
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: Dakota_Don]
#1148617
02/12/12 09:36 PM
02/12/12 09:36 PM
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Joined: Jan 2008
Posts: 669
Michigan, USA
ramman5600
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 669
Michigan, USA
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Quote:
kool, what bolt pattern is on the 6.1
It is the same as a small block minus 1 bolt at the top. A small block 904 or 727 will bolt up with a special flex plate.
-C
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: savoy64]
#1148618
02/12/12 09:38 PM
02/12/12 09:38 PM
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Joined: Jan 2008
Posts: 669
Michigan, USA
ramman5600
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 669
Michigan, USA
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Quote:
the cummins/V10 518/618 is running behind viper motors in jeeps----infact jeep guys in the know that run corvette 5.7 motors are running the built 904,s that came out the old postal jeeps because they are stronger than the chev 350/400 offerings----the 618 will give you 5-6 pinion sun gears and the overdrive is packed with extra clutches with a straight gear apply----bob
I am trying to avoid cutting the tunnel or torsion bar cross member, so the 518/618 option isn't really what I am looking for.
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: GTX MATT]
#1148619
02/12/12 09:40 PM
02/12/12 09:40 PM
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Joined: Jan 2008
Posts: 669
Michigan, USA
ramman5600
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 669
Michigan, USA
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Quote:
If you have any power and plan to beat on it the 700R4/4L60-E/200R4 or whatever variation you are looking at will not last, they are fragile even when every aftermarket part available is thrown at them.
Local guy with an ~450 horsepower 396 Chevelle has gone through 3 in 5 or 6 years.
Those F bodies hold up because as long as they're being easy enough on it that that 7.5" rear end can hold up then the tranny is fine too.
I keep hearing various opinions on this. Some say that they can be built to easily handle 650HP, but that is about the limit. What would a good 727 rebuild handle?
-C
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: savoy64]
#1148621
02/13/12 06:40 PM
02/13/12 06:40 PM
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Joined: Sep 2007
Posts: 576
Escondido, CA
kick_the_reverb
mopar
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mopar
Joined: Sep 2007
Posts: 576
Escondido, CA
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Regarding the GM transmissions:
700R4 and 4l60E are similar, 200R4 is a totally different transmission.
The 200R4 is used in Turbo Buicks, and has a very wide aftermarket support.
I just bought a used built one, to try to put in my A-100 van (no room for any Chrysler OD tranny, unfortunately). Mine is an Art Carr, but if I would buy "new" I would try CK Performance or Extreme Automatics.
Don't use any of them in stock form, btw.
Ran
"Hey mister, something's wrong with your car, it idles roughly" - number one comment I got in Israel when daily driving a 70 Barracuda with a lopey cam.
Currently working on - 1966 Dodge A100 van 318/auto
Finally - disc brakes on the front.
In the plans - rear disc brakes, B&M 250 blower
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Re: 727 with GV o/d or Kieselr A41 (4 speed auto)
[Re: savoy64]
#1148622
02/13/12 07:07 PM
02/13/12 07:07 PM
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Joined: Jan 2003
Posts: 6,816
Alton, IL
Dakota_Don
master
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master
Joined: Jan 2003
Posts: 6,816
Alton, IL
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Quote:
the cummins/V10 518/618 is running behind viper motors in jeeps----infact jeep guys in the know that run corvette 5.7 motors are running the built 904,s that came out the old postal jeeps because they are stronger than the chev 350/400 offerings----the 618 will give you 5-6 pinion sun gears and the overdrive is packed with extra clutches with a straight gear apply----bob
the jeep trany will bolt to a 5.7? im currious how that would work? i do love the light weight of the 904/999
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