This efficient 245 mm converter is available with custom stall speeds from 3000-6500 depending on H.P. and torque. Each converter is built with CNC Billet Cover, furnace brazed or TIG brazed fins, three Torrington bearings, new 4140 hardened chromoly impeller hub, new 4140 chromoly turbine hub, Anti-balooning plates . Standard "spragless" or order optional mechanical diode sprag. Rated to 900 ft/lbs and up to 632 cu. in.