As the parties continued discussions over the next week and agreement was hammered out; von Braun's team at ABMA would be kept together and continue working as the lead developers of Saturn, but the entire organization would be transferred to NASA's management.
In July 1959 a change request was received from ARPA to upgrade the upper stage to a much more powerful design using four new liquid hydrogen/liquid oxygen powered engines in a larger-diameter 160" second stage, with an upgraded Centaur using two engines of the same design for the third stage.