LSU (6-1) earned its first sweep since a three-game series at Arkansas last April. The Tigers also secured their eighth straight series win, dating back to wins over Ole Miss in April, 2005.
LSU hosts Southeastern Louisiana at 6:30 p.m. Tuesday before taking on Temple next weekend to continue a 19-game season-opening homestand.
Harris belted a solo homer in the sixth and connected on a two-run shot in the seventh for the first two-homer game of his career. It was also the first by an LSU player since Ryan Patterson had two at Arkansas on April 25 last season.
"I felt good out there," said Harris. "My first at-bat I struck out looking and wanted to be more aggressive in my next few at-bats. Coach Smoke (Laval) told me to just let it go and try to pull the ball and get my best swing off. My next two at-bats, I got two good pitches to hit and was able to pull them out of the park."
Left-hander Daniel Forrer (1-0) tossed 5.1 innings and allowed three runs on five hits to pick up his first career win despite cold conditions. The junior struck out seven and walked three.
Right-hander Michael Alcorn (0-1) took the loss and was roughed up for five runs (four earned) on six hits in four innings of work.
LSU benefited from 10 errors by the Golden Eagles in the three-game set, including two on Sunday.
Forrer battled through a jam in the second when he surrendered a single and a double to start the frame. The southpaw then issued back-to-back walks with two outs, which brought in the game's first run.
Forrer was able to fan Matt Mihoci as the Golden Eagles left the bases loaded.
LSU quickly responded to tie the game at one apiece on Liuzza's RBI double in the bottom half of the second.
Forrer faced the minimum over the next two innings before allowing another run in the fifth on a RBI single from Jake New.
Liuzza put another run on the board in the fourth, scoring on J.T. Wise's single into left field. Liuzza was nearly thrown out at home, but catcher Steve Soper dropped the relay throw when he tried to apply the tag.
The miscue resulted in another Tennessee Tech error, and LSU led 3-1.
LSU pushed two more runs across in the fifth against Alcorn, who left after allowing the first three batters to reach base. New moved from designated hitter to the mound and walked Steven Waguespack.
New was able to minimize the damage, getting Jordan Mayer to ground into a 6-4-3 double play but not before it brought home Michael Hollander to give LSU a 5-2 advantage.
Forrer exited in the sixth after reaching the 100-pitch mark with a runner at first and one out. Right-hander Darryl Shaffer inherited the base runner and immediately gave up a single to put runners at the corners.
A sacrifice fly by Stuart Meinhart closed the gap to 5-3, but the Tigers responded again. Harris crushed a leadoff homer in LSU's half of the sixth to give the Tigers a three-run lead.
One inning later, Harris greeted Matt Smith, the Golden Eagles' third pitcher of the game, with a two-run homer over the identical spot in the left field bleachers.
Shaffer and right-hander Jonathan Wilhite were masterful over the final two innings, limiting Tennessee Tech to no runs on two hits.
"Shaffer comes in and does his thing and fills up the strike zone," said Laval. "Wilhite, that is the Wilhite we know out there today. He can get you in and out of there in a hurry."
Baseball gets the sweep over Tenn. Tech
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