B&M 20402 B&M Tork Master 3000 Torque Converter, 1965-91 GM TH400, 1968... The Tork Master 3000 has a stall speed of 2800-3200 RPM (based on an engine producing 230 lb., ft. Stall speed of 2800-3200 RPM (based on an engine producing 230 lb., ft. High quality remanufactured unit features a new precision pump drive tube It has been rebuilt with a new precision alloy steel pump drive tube, and it is pressure tested and fully balanced Please Note: This converter should not be used with a transbrake, and high stall torque converters can build extra heat, so supplementary transmission cooling is recommended to avoid premature transmission failure. 4l80e Torque Converter B&M 20402 Torque Converter, Tork Master 3000, GM Auto Trans Th400 Converter Upgrading to a Tork Master torque converter with a higher stall speed can give you better acceleration from a dead stop. Replaces stock converter for better launch capability and more strength B&M 20402 Torque Converter, Tork Master 3000, GM Auto Trans made by B&M, for as low as $562.95. Free shipping when your order includes this part Backed by the manufacturer with a 1 year limited warranty B&m 20402 Tork Master 3000 Torque Converter Parts B&M Tork Master 3000 Torque Converter 20402 B&m 20402 Tork Master 3000 Torque Converter Youtube