It was just like the Juno V-A, except the third stage, originally the second stage of a Titan I booster, would be replaced with a Centaur C high-energy third stage.
The Juno V-A had a comparable overall design, but it deviated from the original in one significant way: instead of using the standard second stage of a Titan I rocket as its third stage, it utilized a Centaur C high-energy third stage.