Rich Preston scored 16 seconds into the third period to start the Black Hawks to a 6-3 triumph over Montreal last night in Chicago that ended the Canadiens' four-game winning streak.

The Black Hawks scored three goals in that period to break a 3-3 tie. The victory came before 18,429, their largest crowd this season, and kept them undefeated (3-0-4) in their last seven games.

Preston was in the left circle and received a pass from Tom Lysiak before shooting past goalie Richard Sevigny. Darryl Sutter gave Chicago a 5-3 lead at 15:04 and teammate Bill Gardner scored 46 seconds later.

Montreal took a 1-0 lead when Keith Acton scored his seventh goal after Chicago goalie Murray Bannerman kicked out Mark Hunters' slap shot. Acton was skating toward the net and slipped in the rebound at 3:30.

Al Secord tied the game with his 14th goal on a power play at 9:20 but Ryan Walter scored his 10th goal for Montreal, Denis Savard having been sent to the penalty box for interference. That gave the Canadiens a 2-1 lead at 11:49.

In the second period, Savard tied it at 2 from the right circle. Steve Shutt gave Montreal its last lead at 11:10, then 36 seconds later Mike Fidler, just brought up from Springfield of the AHL, tied it at 3.