When you’re building a high-horsepower street machine or drag-ready race car, your drivetrain needs to be as strong as your engine. FTI TH400 Performance Transmissions are engineered for serious power, delivering the consistency, durability, and precision shifting demanded by competitive drivers. Based on the legendary GM Turbo 400 platform, each unit is hand-built with premium components that ensure long-term reliability—even under extreme load.

Designed to handle massive horsepower levels, these transmissions are ideal for racers pushing well beyond the limits of factory hardware. Whether you’re running naturally aspirated, nitrous, turbocharged, or supercharged power, the th400 built architecture provides exceptional strength and stability. Every transmission is blueprinted, assembled by experienced technicians, and tested to deliver seamless engagement and repeatable performance.

Enthusiasts choose FTI because of the company’s proven expertise in high-performance drivetrains. With proprietary upgrades and race-focused internals, the fti th400 offers crisp shifts, reduced parasitic loss, and maximum torque transfer. This gives your vehicle the ability to launch harder, accelerate faster, and maintain full control down the strip or on the street.

A standout advantage of these units is their ability to operate as a maximum transmission solution for builds targeting well over 1,000 horsepower. Reinforced cases, upgraded drums, specialized clutch packs, and precision-machined components all work together to provide unmatched reliability in the harshest conditions.

If you’re ready to support your engine with a transmission worthy of your build, FTI’s TH400 lineup is the trusted choice for racers and performance enthusiasts nationwide. Equip your vehicle with proven power-handling capability—upgrade to an FTI Performance TH400 today.