FTI Performance TH400 Level 4 Transmissions TH400-4S

Overview FTI Performance TH400 Level 4 Transmissions TH400-4S Brand: FTI Performance Manufacturer’s Part Number: TH400-4S Part Type: Automatic Transmissions Product Line: FTI Performance TH400 Level 4 Transmissions Summit Racing Part Number: FTI-TH400-4S UPC: 887753825568 Number of Gears: 3 Bellhousing Bolt Pattern Manufacturer: Chevy Transmission Shift Pattern: Reverse Valve Body Style: Full manual Transmission Advertised Horsepower Rating: 900 Torque Converter Included: No Flexplate Included: No Transmission Controller Included: No Wiring Harness Included: No Transmission Cooler Included: No Trans-Brake Included: Yes Lockup Compatible: No Transmission Pan Style: Deep Transmission Pan Material: Aluminum Transmission Pan Finish: Natural Yoke Style: Slip-on/bolt-on Input Spline Quantity: 30 Input Shaft Material: Hardened steel Input Shaft Style: TH350/400 First Gear Ratio (Automatic Transmissions): 2.43 Clutch Hub: Billet Steel Transmission Case Style: OEM Transmission Case Material: Aluminum Transmission Case Finish: Black Transmission Shield Built In: No Flexplate Shield Built In: No Fluid Fill Location: Case Transmission Fluid Included: No Dipstick Included: No SFI Rating: SFI 4.1/30.1 Remanufactured: Yes Quantity: Sold individually FTI Performance TH400 Level 4 Transmissions Overview The FTI Performance TH400 Level 4 Transmission TH400-4S is built for serious racers who demand strength, precision, and consistent performance under extreme conditions. Designed for drag racing and high-horsepower applications, this transmission delivers reliable power transfer and quick, responsive shifts. As a result, it is an ideal choice for competitive builds and performance-driven vehicles. Performance & Durability In addition, this transmission features a full manual valve body equipped with a trans-brake, allowing for precise launch control and improved reaction times. High-performance clutches and steels, along with a 34-element intermediate sprag, enhance durability and load capacity. Because of this, it can handle demanding conditions while maintaining consistent performance. Advanced Engineering Moreover, the inclusion of a high-flow pump and race-prepped stock case improves fluid circulation and overall efficiency. A billet forward clutch hub and heavy-duty intermediate retainer further strengthen internal components. For this reason, this transmission is capable of withstanding repeated high-stress runs without compromising reliability. Applications & Benefits Finally, the TH400 Level 4 transmission is suitable for a wide range of applications, including bracket racing, high-powered street cars, and even mud trucks. Its robust construction and race-ready features make it a versatile option for demanding builds. Ultimately, it delivers a powerful combination of durability, control, and race-proven performance for serious enthusiasts.