On July 4,2003 In 10 – 3 victory over New York, the Red Sox score all their runs with the long ball, hitting a record seven home runs off the Yankees. Prior to today’s Independence Day fireworks, the Bronx Bombers had given up six homers in a game four times, including twice to Boston (1997 and 1977) and the Indians (1970).

Source

Baseball Reference July 4