Senior attackman Grant Whiteway had 4 goals and 3 assists for Billerica (17-2), which rallied from a 6-2 deficit in the second quarter.
Cam Slatton had 3 goals and 2 assists for the Indians. Ben Melaugh and Nick Morello each had 3 goals and 1 assist.
Brian Peterson had 1 goal and 1 assist. Jamie Kelly had 1 assist. Billerica goalie DJ Smith made 12 saves.
The Indians, who trailed 8-7 at halftime, overcame injuries during the game to midfielders Peter Walters, Rob Tedford and Ross Murphy.