A harvesting header and feederhouse for use with a crop harvesting machine has a feederhouse interface at a distal end of the feederhouse and a header frame providing structural support for the harvesting header. The header frame has a top beam, a bottom beam, and first and second vertical main structures connecting the top and bottom beams. The feederhouse interface and the vertical main structures of the header frame are pivotably connected to enable the header frame to pivot with respect to the feederhouse interface.