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

This is the FTI Performance 9.5-inch Billet Lock-Up Street Racer Series torque converter, specifically built for LS engines paired with 4L80E and 4L85E transmissions. It's designed for a 3600 RPM stall speed, meaning it's intended for vehicles where you want the engine to rev up significantly before the torque converter fully locks up and transfers power. This converter is a solid option for a wide range of vehicles, including many Chevrolet and GMC trucks and SUVs like the Silverado 2500 HD or Suburban 2500, as well as luxury vehicles like the Bentley Arnage.

FTI builds these converters with a computer-designed, CNC-machined billet front cover and a billet lockup piston. This construction is key to preventing premature clutch wear, which is a common issue in high-performance applications. They also use custom stator designs and multiple blade angle pumps to achieve specific stall speeds, like the 3600 RPM rating on this unit, tailored to your driving style and vehicle setup. 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 durable.

Because these are custom-built to your needs, you get a torque converter that's matched to your specific engine and transmission combination. This level of attention to detail means you're getting a part that's built to handle demanding use and deliver consistent performance. It's important to note that this converter is not CARB approved and cannot be shipped to California.