Doug DeCinces drove in four runs with two homers and a sacrifice fly and Dave Goltz pitched 3 2/3 innings of superb relief as California beat visiting Kansas City to extend its lead in the West to three games.
The victory was Angels' fifth in a row and their third straight over the Royals, who equalled a season-high by losing their seventh straight. Each team has 10 games left, three against each other in Kansas City next week.
U.L. Washington gave Kansas City a 1-0 lead in the top of the first with his eighth homer, but DeCinces put the Angels ahead to stay in the bottom of the inning when he hit his 27th following Rod Carew's walk.
The Angels chased Kansas City starter Vida Blue (13-11) with three runs in the second, taking a 5-1 lead.
Juan Beniquez opened with a ground rule double and, after Blue retired the next two batters, scored on Brian Downing's single. Carew tripled and, after DeCinces walked, Don Baylor singled.
Amos Otis' 11th homer, with one on in the top of the third, made it 5-3, but the Angels scored what proved to be the winning run in the fourth when Rick Adams got his first major league hit, a single, went to third on Carew's single and scored on DeCinces' fly.
The Royals got their last two runs in the sixth when they finished Tommy John (13-12). Singles by Amos Otis, Hal McRae and John Wathan scored one and brought on Goltz with runners at second and third with one out.
Pinch hitter Steve Hammond's ground out made it 6-5, but Goltz retired the next 11 batters.
Downing and DeCinces each hit his 28th homer in the eighth.