The right transmission depends on how the car will be driven, how much power it makes and what fits under it.
Powerglide
A two-speed automatic that is light, simple and strong. A favourite for drag racing, less suited to highway driving.
TH400
A three-speed automatic known for strength. Common behind big power and in heavier vehicles, with no overdrive for highway cruising.
700R4
A four-speed with overdrive, popular for street cars and restomods that need relaxed highway RPM. It needs a correctly set TV cable to live.
4L60E
The electronically controlled successor to the 700R4, found behind many LS swaps. It needs a compatible controller or ECU.
What to check
- Bellhousing pattern and flexplate
- Torque converter stall speed for your cam and gearing
- Output shaft and transmission length for your driveshaft
- Shifter and cooler connections
Browse transmissions or ask us which suits your build.