Van Dyke was drafted in the 12th round of the 1966 NFL Draft by the Philadelphia Eagles. He was a key player for the Pittsburgh Steelers for seven years. In 1967, during his first year with the Steelers, the team won only one game. Seven years later, in 1973, Pittsburgh won their first AFC Divisional title. In 2008, Van Dyke was named to the Steelers Legends Team.