Stalk roll for a row unit of an agricultural harvester

A row unit for a header of an agricultural harvester is provided that includes a frame and two spaced apart stripping plates. The row unit further includes a first stalk roll mounted to the frame adjacent the first stripping plate and a second stalk roll mounted to the frame adjacent the second stripping plate. The first stalk roll includes a primary helical flight having a front end that starts at a front edge of the first stalk roll and the second stalk roll includes a secondary helical flight having a front end that starts at a position axially spaced from a front edge of the second stalk roll.