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Yes, a lock-up torque converter is beneficial for a 700R4 transmission as it improves fuel efficiency and reduces engine RPM at highway speeds. Locking the converter eliminates slip between the engine and transmission, resulting in better power transfer. However, while it is not strictly necessary for the converter to lock up for the transmission to function, not having a lock-up feature can lead to decreased performance and increased fuel consumption.
What else can I help you with?
Will a 700r4 torque converter run in a turbo 350?
No it will not. Because it is a lock-up converter and the 350 turbo is not set up for a lock-up converter.
What size transmission does a 1990 silverado 1500 have?
the overdrive transmission in those trucks are 700R4 with lock up torque converter
Will 700r4 transmission fit a 1982 Chevy 305?
Yes, it will bolt up. As long as you have a metric 200 or a turbo 350 your cross member should also be ok. The only issue you may have is that a 700r4 has a lock up torque converter. If your current ECM supports that you are fine. If not you either need to buy a non lock up converter for it or use an aftermarket kit for the lock up feature.
How does the electric wiring in a 700R4 transmission work?
The wiring for the early 700R4 controlled the lock up converter only. We used to ground the wire by passing the external vacuum control so as soon as the transmission went into over drive it would lock and stay locked to prevent transmission overheating.
Do all 700r4 have lock up converters?
Yes they do, It's a must.
What is the deferents between a turbo 350 transmission and a 700 R transmission?
A turbo 350 has only 3 gears. The 700R4 has 3 gears plus over drive and lock-up converter. And it is the same as a 400 turbo with overdrive.
Will a 700r4 retro fit with turbo 350 transmission in a 78 camaro?
It will bolt up....but if I remember correctly, you have to trim a little bit off the transmission cross member to clear the pan. One other thing to keep in mind is that the 700-R4 is designed to work with a lock up torque converter. You either need to get a stand alone control module for this or buy a special torque converter designed for this swap. I'd like to add, most tranny shops have lock-up and non lock-up converters. NBD. I've been running a non lock-up for years. Get someone who really understands how the "kick-down" cable works. Now its a TV cable that controls pressure in the trans. I've seen guys smoke brand new transmissions in a few blocks when they got it wrong!! If you get a torque converter from a reputable builder that was originally built for a V6 with a 700R4, bingo 2200 rpm stall!! For about $50.
What kind of transmission will interchange with a 88 Chevy 1500?
I had a 89 Chevy 1500 4x4 with the 700R4. I replaced it with a turbo 350 from a 1979 4x4, and it actually picked up 3 more MPG. It made more power without the lock-up converter, and 4th gear. Every weekend I would pull a stockcar to the racetracks, and the transmission temp ran 20 degrees cooler with the turbo 350, vs the 700R4.
Will a 92 gm 700R4 interchange with a 95 gm 4L60E?
no & yes, yes it will bolt up to your engine, but to make it function, you will have to add a transmission computer to your ride. GM sells these for the conversion. Unfortunately, like everything else from GM it is expensive.The 4L60E is an electronoic computer controled transmission where as a 700R4, also known as a 4L60 ,uses the computer only for converter clutch lock up in the 92 model cars. I asume your car is a 92.
Will unplugging torque converter hurt?
it wont let lock up engage
Where is torque converter lock up switch on 1997 LHS?
inside trans
Will a Chevy 84 truck transmission interchange with a 88 Chevy truck?
The 1984 700R4 will interchange with a 1988 700R4. The lock-up harness would have to be modified, changed or have a hydraulic lock-up kit installed. An easy fix would be to put the harness and swithes from the 1988 transmission into the 1984 transmission. The 1984 transmission is a weaker design but a working transmission will get you going.
