The FTI Street Racer 9.5-inch billet lock-up torque converter for 700R4 and early 4L60 transmissions lists a 4000 rpm hard-hit stall with a 27-spline input, aimed at high-stress launch applications. SRL Series features like a billet cover and heavy-duty internals are included to reduce wear during demanding use. This unit is intended for drivers seeking robust, aggressive engagement.
FTI 9.5in 700R4/Early 4L60 Billet Lock-Up Street Racer Series - LT - 27 Spline - 4000 Hard Hit Stall