Kingsbury, of Deux-Montagnes, Que., finished with a score of 25.78 points for his 19th straight podium, while Bilodeau, of Rosemere, Que., was right behind with 25.60.
Patrick Deneen of the United States was third with 25.07.
Meanwhile in the women's event, Hannah Kearney, Heather McPhie and Eliza Outtrim completed an American sweep.
It was only the second sweep by U.S. women, with the other occurring Jan. 21, 2010, in Lake Placid, N.Y.
Kearney won gold in 2010 as well, while McPhie took bronze behind Shannon Bahrke.
The competition continues Friday with aerials, with dual moguls to follow on Saturday.