TH400 Level-4.5 Trans 1100HP w/Chev Ultra Bell

The TH400 Level-4.5 Trans 1100HP with Chev Ultra Bell is a fully built, competition-grade three-speed automatic transmission designed for high-horsepower applications. This transmission is ideal for hot rod builders, drag racers, and performance enthusiasts who require exceptional reliability behind engines producing 1100+ horsepower. Its robust design makes it a preferred choice for those engaged in serious racing and performance driving.

Engineered with internal enhancements, the TH400 Level-4.5 features strengthened input shafts, upgraded clutch packs, and precision-balanced rotating assemblies. These modifications are intended to handle extreme torque and ensure consistent power delivery. The Chev Ultra Bell adapter allows for direct installation onto Chevrolet engine blocks, simplifying the setup process and ensuring optimal performance.

This transmission is particularly beneficial for bracket racers, Pro Street competitors, and owners of LS-swapped hot rods. It is compatible with naturally aspirated big-blocks, as well as supercharged and turbocharged setups. The heavy-duty valve body tuning enhances pressure curves and shift timing, providing a balance between performance and drivability.