To obtain all the difference in specs, you might have to contact
"Craig" at Coan. 765-456-3957
Competition Series Converters-Coan:
These converters bolt in with no modification and are available in several popular styles and sizes. They are designed for high torque, high performance pro street and racing applications.
They feature: billet steel turbine hubs, 3 sets of heavy duty thrust bearings, furnace brazed blades, and are balanced and pressure tested. Several impeller and stator combinations are available to produce the desired stall speeds.