The FTI Street Racer billet lock-up torque converter for 700R4/early 4L60 applications is a 9.5-inch, 3800 rpm stall unit with a 27-spline output tuned for high-launch street performance. It uses a CNC-machined billet front cover and a billet lockup piston to reduce clutch wear. Complementary features include custom stator geometry, multi-angle pumps, furnace-brazed and heli-welded fins, severe-duty sprague, and an anti-ballooning impeller hub.
FTI 9.5in 700R4/Early 4L60 Billet Lock-Up Street Racer Series - LT - 27 Spline - 3800 Stall