The FTI Performance 9.5-inch Street Racer torque converter for Ford C4 applications is specified with a 26-spline input and an 11 7/16" bolt circle and tuned to a 3600 rpm hard-hit stall. It is built as a street racer series unit to deliver firmer engagement for aggressive launches. The design targets reliable lock-up behavior while being compatible with Ford C4 spline and bolt-circle configurations.
FTI 9.5in Ford C4 Street Racer Series Converters - 26 Spline - 11 7/16 BC 3600 Hard Hit Stall