Is the 700R4 transmission any good?
The 700R4, produced by General Motors/Hydramatic, is considered one of the best overdrive transmissions ever made. This transmission was introduced in 1982 as a replacement for the TH350 transmission, with the primary goal of improving fuel economy.
How much power can a 700R4 transmission handle?
I’ve read a stock 700r4 can handle 350 lb-ft of torque. But some were rated higher depending on it’s application. 1989 was not a high horsepower maybe 230 or torque motor if I recall correctly. You could just have that trans freshened up to handle new motor.
What year 700R4 transmission was the best?
Generally, 1987 and up TH700R4s or 1990-’93 4L60 units are the most desirable. Before trying to install this transmission in your vehicle, you should thoroughly check the unit and refurbish it, if necessary.
Will a 700R4 work without a computer?
To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted. Not just a simple kickdown cable like your TH350 analogue, the TV cable controls line pressure and shift points.
Is a 700R4 transmission the same as a 4L60E?
You can’t tell the difference between a 700R4 and a 4L60E by the oil pan as they are nearly the same. If the transmission has a large 18-pin electronic connector above the passenger side pan rail, it’s a 4L60E, as seen here. If it has a cable connection near the cooler lines on the passenger’s side, that’s a 700R4.
How many gears does a 700R4 have?
700r4 Transmission Specifications
| Description | Spec |
|---|---|
| Type | 4 Speed Automatic |
| Applications | GM Cars – GMC, Chevy/Chevrolet, Buick 1982-1990 Blazer, Suburban, Camaro, Corvette, Impala, Oldsmobile 350 and more |
| Gears | 3 + 1 Overdrive 30% |
| Weight | 170 lbs dry~ |
Will a 700R4 bolt up to a LS engine?
Yes, a 700R4 will bolt up. 1 bolt hole will not be used. Also, you will need a small adaptor that fits into the crank for the nose of the torque convertor.
What does the TV cable do on a 700R4?
The TV cable on the 700R4 and 200-4R transmissions controls line pressure, shift points, shift feel, part throttle downshifts, and detent (full throttle) downshifts. So if the TV cable is not adjusted properly, it can cause numerous transmission problems.