FTI Performance SRL Series 9.5-inch billet triple-disc lock-up torque converter for 4L80E/4L85E transmissions (LS) is built for high-power use and tuned to a 3200 rpm stall. It features a CNC-machined billet front cover and billet lock-up piston, furnace-brazed and heli-welded fins, a severe-duty sprag and anti-ballooning flanged impeller hub for durability in demanding street and race applications.
FTI 9.5in 4L80E/4L85E Billet Triple Disc Lock-Up Street Racer Series - LS - 3200 Stall