CHESTNUT HILL--The book on the Boston College baseball team says they like the long ball.

The Eagles (13-12, 3-6 Big East) lived up to billing yesterday, drilling seven home runs in a doubleheader sweep of the Crimson (12-12, 6-2 Ivy) at Shea Field.

First baseman Sean McGowan led a 28-run, 28-hit assault with four home runs and nine RBI. He leads the Big East with 18 on the season, and has 50 RBI and a 1.070 slugging percentage.

"I've never had a day like this before," McGowan said. "Never hit four home runs in one day before. From the start, I was seeing the ball real well, there was a good wind and I got hold of some good pitches to drive."

B.C.'s Jeff Langone hit a grand slam during a 12-run third inning in the opener, and earned a complete-game 12-6 win, while McGowan and Eagles second baseman Mike Gambino combined for eight RBI during a 16-5 romp in the nightcap.

Langone is second on the team with six home runs.

"We were definitely a little down, losing two games that weren't that close," said captain Hal Carey. "The last few innings of both of those games, we were really out of it. It's a frustrating time right now."

B.C. 16, Harvard 5

The Eagles big burst came in the third inning of the nightcap, when they scored seven to open up a 9-1 lead and chase freshman starter Justin Nyweide (0-2).

Right fielder Mike Quirk hit a leadoff single up the middle, and two batters later, McGowan pulled Nyweide's fastball deep over the left-field wall for a 4-1 lead.

"All four of my home runs, I hit on fastballs," McGowan said. "I know that these are the midweek pitchers, but I had a pretty easy time all afternoon picking the ball up."

Catcher Jeff Waldron stroked Nyweide's next pitch to right, comfortably clearing the 30-foot-high scoreboard behind the fence, and the rout was on.

Nyweide walked center fielder Jarett Mendoza with two outs, then gave way to sophomore John Franey, who allowed an RBI double and a home run to light-hitting second baseman Gambino on a high drive to center that sat in a strong wind and carried out of the park.

Langone's two-out RBI single closed out the scoring in the inning.

"They've been a similar team for the last few years," Carey said. "They're a team that likes to hit, and playing in their park, which is suited to the home run, with a good wind, made it different. But we knew that going in."