FTI TH400 Transmission - Level 4.5 - 1100HP - Reverse Pattern - Sportsman Transbrake - GM Ultrabell

The FTI Performance TH400 Level 4.5 transmission is engineered for high-performance street, strip, and racing applications requiring dependable power handling and precise control. Part number ftiTH400-4.5UB is rated for applications producing up to 1,100 horsepower and features a reverse-pattern shift configuration for race-focused operation. This transmission is built around the proven GM TH400 platform and is designed to provide consistent shifting under demanding conditions.
The integrated Sportsman transbrake supports controlled launches by allowing the transmission to hold the vehicle stationary while engine speed and boost are built. Its GM Ultrabell provides a robust bellhousing solution for compatible GM applications, helping create a strong connection between the engine and transmission. The Level 4.5 configuration is intended for serious performance builds where durability, response, and repeatable operation are essential.
This FTI Performance transmission is supplied as a complete performance transmission assembly for suitable GM-based drivetrains. Verify vehicle compatibility, converter requirements, shifter arrangement, driveshaft fitment, and supporting drivetrain components before ordering. Because this is a high-performance transmission, proper installation, fluid selection, cooling, and tuning are essential for reliable service. A core charge applies and may be subject to the manufacturer's core return requirements. Freight delivery may be required due to the product's size and weight.

Features:

• Brand: FTI Performance

• Part Number: ftiTH400-4.5UB

• Transmission Type: GM TH400 performance automatic transmission

• Power Rating: Supports applications up to 1,100 horsepower

• Build Level: Level 4.5 performance configuration

• Shift Pattern: Reverse-pattern operation

• Transbrake: Sportsman transbrake included

• Bellhousing: GM Ultrabell included

• Core Charge: Core charge applies

• Application: High-performance street, strip, and racing vehicles