At SOUTHERN HOTROD, we use Torque rather than Horsepower to rate our transmissions. This is because transmission parts fail due to dynamic and twisting forces in which they carry. Horsepower is a calculated number based off of Torque and RPM and does not reflect a true force which acts upon the transmission geartrain.
Some very important things to keep in mind when considering which transmission is best for your application are:
- Engine and Transmission calibration
- Torque Converter
- Vehicle weight
- Vehicle use
- Transmission Heat management
- Tire size
- Axle ratio
If you have any questions or need help in choosing the correct Transmission or Build kit, contact us for recommendations.
Type I GEN II Transmissions and Build Kits
NAG1 722.6
~800+ Torque, ~40+% above OEM build
8HP90/95
~1000+ Torque, ~40+% above OEM build
8HP70/75
~800+ Torque, ~40+% above OEM build
Type II GEN II Transmissions and Build Kits
NAG1 722.6
~1300+ Torque, ~100+% above OEM build
8HP90/95
~1500+ Torque, ~100+% above OEM build
8HP70/75
~1100+ Torque, ~100+% above OEM build