The FTI Performance SRL billet lockup torque converter is a 9.5-inch A340 unit tuned for a 3,800 rpm stall. It uses a CNC-machined billet front cover and a billet lockup piston to help reduce premature clutch wear, with custom stator designs and multiple blade-angle pumps. Robust construction includes furnace-brazed and heli-welded fins, a severe-duty sprague, and an anti-ballooning flanged impeller hub for strength.
FTI 9.5in A340 Billet Lock-Up Street Racer Series - 3800 Stall