FTI 9.5in TH350/TH400 Economy Street Racer Series - Turbo Spline - 4000 Hard Hit Stall

If you're building a street/strip car with a TH350 or TH400 transmission and looking for a serious performance boost off the line, this FTI Performance torque converter is a solid choice. It's designed to handle hard hits and deliver a strong launch, making it ideal for vehicles that see regular track use but still need to drive on the street. This converter is built for a 4000 RPM stall speed, meaning your engine will reach that RPM before the converter fully locks up and transfers power to the transmission, allowing for a powerful launch.

This converter features a 9.5-inch diameter and a turbo spline, ensuring it mates correctly with your transmission and driveshaft. FTI Performance builds these converters with a focus on durability for performance applications. They use well-built internal components and a robust housing designed to withstand the stresses of aggressive driving and high horsepower. The 4000 RPM stall speed is achieved through careful balancing of the internal fins and fluid dynamics, optimized for engines that make their power in the upper RPM range.

This torque converter fits a wide range of classic vehicles, including models like the Chevrolet Bel Air, Cadillac DeVille, and Bentley Mulsanne. It's important to note that this part is not CARB approved and cannot be shipped to California. For optimal performance and longevity, always refer to the manufacturer's installation instructions and ensure your transmission is in good working order before installation.