The FTI 9.5in Billet Mud Racer torque converter for TH350/TH400 GM transmissions is a spragless mud-racing unit with a 4000 hard-hit stall for aggressive launches. Built for high-torque weekend runners and occasional competition, its spec sheet includes a forged billet steel front cover, billet spragless center, hardened flanged impellor hub and a steel anti-ballooning plate to maintain structural integrity under load.
FTI 9.5in GM Spragless Mud Racing Converters Aluminum Stator - 4000 Hard Hit Stall