The FTI Performance 9.5-inch spragless mud racing torque converter for Ford C4 transmissions uses an 11 7/16" bolt circle, 26-spline output and a 3800 rpm hard-hit stall. Specified for mud racing use, it raises stall to help maintain wheel speed and launch in sticky or uneven terrain. Ideal as a direct-fit C4 race converter for aggressive stall needs.
FTI 9.5in Ford C4 Spragless Mud Racing Converter - 11 7/16 BC - 26 Spline - 3800 Hard Hit Stall