Paul George led the team with 31 points, helping the Pacers to maintain the NBA's only unbeaten record.
The head coach told reporters: "Our starters' disposition and attitude and energy took the game back over. We were able to ride it out. "They have monster size and great guards, very proud of the effort.
"Paul George did everything I asked him to do, everything you could possibly ask a player to do tonight."
The Pacers are in action again tonight against the Chicago Bulls.