FTI 9.5in 4L80E/4L85E Billet Triple Disc Lock-Up Street Racer Series - LS - 3600 Stall

If you're building a high-performance LS engine paired with a 4L80E or 4L85E transmission and need a torque converter that can handle serious power, this FTI Performance Street Racer Series converter is built for that job. It's designed to provide a 3600 RPM stall speed, meaning the engine can rev up to that point before the converter fully engages and transfers power to the drivetrain. This is crucial for getting the most out of your engine off the line, especially in drag racing or other performance applications.

This converter is a well-built unit featuring a CNC-machined billet front cover and a billet lockup piston. This construction is key to preventing premature clutch wear, a common issue with less robust converters under high stress. FTI uses custom stator designs and multiple blade angle pumps to achieve specific stall speeds, and this particular model is set up for a 3600 RPM stall. The fins are furnace-brazed and heli-welded for extreme durability, and it includes a severe-duty sprague and an anti-ballooning flanged impeller hub, making it a very strong option for demanding use.

This torque converter fits a wide range of vehicles, including many Chevrolet and GMC trucks and SUVs from the 1990s and early 2000s, as well as some Bentley models. It's a custom-built component tailored to your specific needs and driving style, ensuring it works well with your setup. Because this is a performance part, it's important to note that it is not CARB approved and cannot be shipped to California.