Competition Stall Converter HT42-40Competition Stall ConverterSuit C4 1970 81 With 26 spline 11. 5" Bolt Pattern 4000 Stall HT42 40 42 40 Competition Converter 40 Series The most important factor in performance driving is how your car leaves the starting line. This Hughes Street and Strip converter is exclusively designed for the serious racer. The replacement of the fiber thrust washers with heavy duty needle bearings packages enables this converter to be run on the street, but is