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

If you're building a high-performance LS engine for a 4L80E or 4L85E transmission and need a torque converter that can handle serious power, this FTI Performance Street Racer Series converter is a solid choice. It’s designed for demanding street use and racing applications, offering a 3600 RPM stall speed that’s perfect for getting your vehicle off the line quickly. This converter fits a wide range of vehicles, including many Chevrolet and GMC trucks and SUVs from the 90s and early 2000s, as well as some Bentley models.

FTI builds these converters with a focus on durability and performance. The billet front cover and billet lockup piston are computer-designed and CNC-machined to resist premature clutch wear, a common issue with lesser converters under high stress. Inside, you'll find custom stator designs and multiple blade angle pumps, all working together to achieve that specific stall speed you need. The fins are furnace-brazed and heli-welded for strength, and it features a severe-duty sprague and an anti-ballooning flanged impeller hub, making it incredibly tough.

This converter is custom-built to match your specific engine and driving style, ensuring you get the most out of your setup. It’s a well-built component designed to withstand the rigors of performance driving and racing, offering a significant improvement in launch capability and overall power transfer for your LS-powered vehicle.