These high-stall torque converters feature woven-carbon friction and lock-up control technology which seamlessly applies the clutch. Each one features a removable billet front that allows access to the entire lock-up assembly, turbine, stator and bearings for servicing or re-stalling in the event of future vehicle modifications. The billet front is CNC-machined and made from pre-hardened steel. For added strength, TCI engineers included a pre-hardened billet turbine hub, lock-up piston and 50-spline clutch hub. The converters are fully furnace-brazed, computer-balanced and hand-assembled to precise tolerances.