In Chapel Hill, N.C., North Carolina held Clemson scoreless after the first inning to defeat the Tigers, 10-1, in the championship game of the Atlantic Coast Conference baseball tournament.

The 41-8 Tar Heels came back from a 5-2 loss to Clemson in the first playoff game Sunday to win their second straight ACC title and earn an automatic berth in the NCAA tournament, beginning May 25 . . .

Atlantic Coast Conference basketball coaches recommended the adoption of a 45-second shot clock, to be turned off the final four minutes, and a box restricting coaches' movement, both of which may go into effect for the 1983-84 season.

The league's athletic directors and faculty representatives received the proposal from Mike Krzyzewski, Duke coach and chairman of the conference's basketball coaches committee, who said the athletic directors and faculty representatives would vote on it May 12-18 in Myrtle Beach, S.C.

Last season, the ACC experimented with a 30-second shot clock and a 19-foot, three-point field goal . . .

Bob Ferry and Pat Smith, both graduates of De Matha High School, won honors as Harvard announced its basketball award winners for the past season. Ferry, son of the Bullets' general manager, was named the Crimson's MVP. Smith shared the Hustle Award with Kevin Boyle . . .

Sophomore center Mike Brown and freshman guard Troy Webster of George Washington were among the selections for a 12-man Atlantic-10 Conference basketball all-star team that will play eight games during a 12-day tour of Spain, May 10-22 . . .

Bob Perry shot a 74 and Rob Bertazon 78 to put Towson State in front with a 394 score on the first day of the two-day East Coast Conference golf championships in Cranbury, N.J.

Among the four players tied at 76 was Bob Caswell of American, which was fifth in the team standings.