Speedway Chevy 700R4 Automatic Transmission, 2200-2400 Stall
Exclusive 4-speed overdrive Chevy 700R4 Street Rod crate transmission package from Speedway Motors. Each 700R-4 automatic transmission is dyno tested to ensure quality and performance.
- Torque converter
- Fully balanced and tested
- 2200-2400 stall speed (400-600 over stock)
- Provides great off the line starts while retaining remarkable streetability
- Street performance valve body
- High performance servo
- Raybestos z-pack
- HP sun shell
- Raybestos HP clutches
- OEM input shaft
- Aluminum transmission pan w/ drain
Backed by a 1 year warranty.
Performance torque converters are generally grouped by size (diameter) and stall speed (RPM). As the diameter of a torque converter decreases, the stall speed goes up. Most factory torque converters are 12-13 inches in diameter and have a stall speed of 1600-1800 RPM. Problems can arise when modifications are done to the fuel system, camshaft, or other engine control systems. Smaller diameter converters are needed to provide more slip at idle. This allows engines with a lot of camshaft to idle better. As the torque converter and horsepower range is moved higher in the RPM range, small torque converters with their higher stall speeds provide maximum torque multiplication where it's needed. Also, the same torque converter will react differently when used behind different engines.
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