Truss, who made all seven of his shots from the field, also grabbed nine rebounds for the Blue Hose (3-11), who never trailed and ended a four-game losing streak.
Khalid Mutakabbir scored 11 points for Presbyterian, which led 37-13 at halftime as Montreat did not score in the final 6 minutes before the break. The Blue Hose shot 58 percent while Montreat, which had four field goals in the first half, finished the game at 27 percent.
Brandon Dockery led the Cavaliers with eight points. Montreat, which plays in the NAIA and counted Tuesday's game as an exhibition, hadn't played since an 85-51 loss to North Carolina-Asheville on Dec. 8. The Cavaliers had 15 turnovers and just five assists.
Mike Brey is looking at former Notre Dame players to fill two assistant jobs that have opened up with the departures of Martin Ingelsby and Anthony Solomon.
Purdue's 2016-17 prospects got a jolt Wednesday when forward Caleb Swanigan announced he will return for his sophomore season.
Clemson's Jaron Blossomgame says he is withdrawing from the NBA draft and returning to school for a final season.