What transmissions is this torque converter compatible with?

This FTI 9-inch SST Series torque converter is designed for THM400 and THM350 transmissions that use a turbo spline. Always verify your transmission model and spline type before ordering.

What makes this torque converter suitable for both street and track use?

The SST Series is custom-built to balance street manners with track performance. It features an aluminum stator for efficiency and a mechanical diode, offering a good compromise for drivers who use their vehicle for both daily driving and racing.

What internal components contribute to the durability of this converter?

This converter is built with a hardened turbine and impeller hub for increased wear resistance. It also utilizes triple Torrington bearings and is furnace brazed and TIG welded for robust construction under demanding conditions.

FTI Performance SST89-8 Torque Converter - Turbo Spline

Name: FTI 9In Custom SST Series Torque Converter - Aluminum Stator With Diode - Turbo Spline
Brand: FTI Performance
SKU: fti-performance-fti-9in-custom-sst-series-torque-converter-aluminum-stator-with--t14-825732
Price: 1250.11 USD
Availability: BackOrder

FTI 9In Custom SST Series Torque Converter - Aluminum Stator With Diode - Turbo Spline

$1250.11

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

FTI 9-inch Custom SST Series Torque Converter with aluminum stator and mechanical diode. A popular choice for street/strip racers seeking performance.

Key Features

Fits THM400 and THM350 transmissions with a turbo spline.
Features a custom-built, CNC-ported aluminum stator.
Includes a mechanical diode for reliable operation.
Built with a forged billet front cover and billet stator caps.
Equipped with a steel anti-ballooning plate.
Uses triple Torrington bearings for smooth performance.

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Product Details

This is the FTI 9-inch Custom SST Series Torque Converter, specifically built for applications using a turbo spline and a THM400 or THM350 transmission. It's designed for racers who want a converter that behaves well on the street but still delivers serious performance when you hit the track. FTI builds these custom to your specific application, ensuring you get a part that works with your setup.

The SST Series converter balances performance and affordability, making it a well-known option for budget-minded street/strip competitors. It features a CNC-ported aluminum stator for efficient power transfer. You'll also find a steel anti-ballooning plate to keep things stable under load, a forged billet front cover for strength, and billet stator caps. Inside, it uses triple Torrington bearings for smooth operation and a hardened turbine and impeller hub for durability. This converter also includes a mechanical diode, which is a solid choice for many racing applications.

When you order this converter, it's custom-built to your application. Keep in mind that this part is not CARB approved and cannot be shipped to California. For installation, refer to the manufacturer's instructions to ensure proper setup with your THM400 or THM350 transmission.