Doug DeCinces hit his 12th and 13th home runs and Ellis Valentine hit a grand slam as the California Angels rallied to beat the Yankees, 9-8, last night in New York. The Yankees had won six straight.

DeCinces homered with the bases empty in the fourth inning and Valentine's slam highlighted a six-run sixth that enabled the Angels to tie the score at 7. Then in the seventh inning, DeCinces won the game with a two-run homer.

With the Angels losing, 7-1, Tim Foli doubled to open the sixth and scored on Reggie Jackson's single. One out later, Ron Jackson singled Reggie Jackson to third and reached second on the throw to the infield, although the Yankees argued that second baseman Willie Randolph tagged him out.

But second base umpire Derryl Cousins, with whom the Yankees last week became involved in a controversy that led the one-week suspension of team owner George Steinbrenner, ruled him safe.

The Yankees' vice president of baseball operations, Bill Bergesch, invited writers in the press box to view replays.

Then Dale Murray, who relieved starter Dave Righetti, walked Juan Beniquez with the bases loaded and gave up Valentine's grand slam.