Miami has now won 18 straight games over Western Conference opponents, two away from matching the longest regular-season streak ever posted by an Eastern Conference team. Boston won 20 straight over the West during a nine-month span of 1973.
Bosh had 12 points midway through the opening period, the Kings scored more points in the first quarter (36) than anyone had against the Heat since March 2011 and Miami had seven dunks in the first 15 minutes -- two of them by Allen, who entered the season with exactly zero slams and had not dunked twice in the same game since February 2011.
The Heat had 29 baskets in the first half; 21 were either dunks, layups or tip-ins. There were 10 ties and nine lead changes in the half, one where no team ever led by more than seven.
By halftime, it was 67-61 Miami. The Kings shot 66.7 percent in the half and were actually trailing, a somewhat odd and difficult feat.
Bosh, James, Wade and Shane Battier combined for 22 points on 9 for 14 shooting and Miami outscored Sacramento 31-21 in the third, building a 98-82 edge to take into the fourth. The Kings had five turnovers in that quarter, and Miami turned them into 11 points.
"Just taking care of business," Wade said.
The games on Christmas Day will have teams wearing short-sleeved jerseys, which is getting mixed reviews in the Heat locker room. "I haven't actually worked out in them too much. I know my shooters are already upset," James said. ... Wade has 24, 27, 32 and 20 points in his last four games, all Heat wins. ... Cousins shot 11 for 15 for the Kings, adding to his strong start this season. ... Sacramento gave the Heat 32 points off turnovers and was outscored 70-60 in the paint.
The Associated Press contributed to this report.