Larry Herndon celebrated the birth of his fourth child with five hits, three RBI and four runs scored to lead the Tigers to a 12-6 victory over the California Angels last night in Detroit.

Among Herndon's hits were two doubles and his eighth homer of the season. He got a base hit and scored his first four times at bat, with his two-run homer in the fifth giving the Tigers a 10-3 lead.

Herndon's wife gave birth to a son yesterday at 1:15 a.m. "We really feel good about the whole thing," Herndon said. "The baby started the whole thing. I just felt good. When I came to the park my wife said, 'Have a good day.' "

Lou Whitaker led off the Detroit first with his sixth home run of the season, off Geoff Zahn (5-4), who had not pitched since June 2 because of shoulder problems. The Tigers knocked out Zahn with four more runs in the inning, then scored one run in the second and another in the third.

After Rod Carew and Rick Burleson singled in California's first, Brian Downing hit his seventh homer, off Dave Rozema (6-0). Rozema retired the next 15 batters, but the Angels got three more in the sixth. Rozema won his 10th straight game dating to 1981.