PRO-X Drag Race Torque Converter 9" GM TH 400 Spline (4000-4800 Stall Range)

Building huge horsepower is fine as long as your drivetrain is up to the task of delivering the power to the pavement. TCI® offers a complete line of premium torque converters built exclusively for use in Top Sportsman, Top Dragster and 10.5 Tire Outlaw classes. Able to handle 500+ c.i., 2500+ horsepower, 3500 RPM applications (including multi-stage, nitrous-assisted, supercharged and twin turbocharged engines), these high strength torque converters are built for most GM, Ford and Chrysler transmissions and bolt up to either six or four-bolt mounting flanges. In addition, the PRO-X™ 9" and 10" Torque Converters utilize the state-of-the-art, proprietary metallic gray HDT Coating™ which enables TCI® converters to operate at lower temperatures and cool down faster.

• Bulletproof, Hand-Built Steel Stator

• Billet Mounting Ring

• Three Sets of Heavy-Duty Internal Bearings

• Furnace-Brazed & Hand-Brazed Turbine & Pump Assembly

• Fits GM Turbo Spline Transmissions

• 4000 RPM Base Stall Range / 4800 RPM Upper Stall Range*


*Stall speed is an appproximation – will vary per CID; dyno torque; HP ratings; power adders, such as turbo(s) amount of boost, blower size & amount of boost, amount of initial nitrous applied. When power adder is used, refer to upper stall range.