Pro Series Stage I Billet Single Disk Torque Converter Torque Converter Diameter - 245mm - 9 3/4" Available in stall speeds from 3000-4400 rpm Furnace Brazed Hand TIG Welded Fins and Turbine Hub Torrington Needle Bearings Deep Groove Ball Bearing CDS Billet Front and Billet Piston HD Impeller Hub eliminates cracking problem Anti-Ballon Plate for Durability Hand Assembled to Exacting Tolerances