The George Washington Colonials used quickness and emotion to defeat the Greek National team, 80-71, in an exhibition basketball game last night at George Washington's Smith Center.

The Colonials won despite a shot-blocking display by 7-foot-1 Panis Fassoulas, who played center for the Greek Nationals. Fassoulas blocked 15 shots, 12 in the first half.

George Washington effectively ran its fast break against the Greek Nationals, who seemed sluggish after four straight games on the road.

The Greek team won the European championship in June by defeating the Soviet Union, and it is currently on a five-game tour through the United States.

Ellis McKennie, a sophomore guard, led George Washington with 18 points. Senior guard Gerald Jackson scored 14 points.

GW Coach John Kuester praised his team's defensive effort, particularly the play of forward Mike Jones, who had 11 rebounds.

"Our kids played intensely tonight," said Kuester. "And for us to win games, we have to be emotional."

In his last five games, Fassoulas has had 52 blocked shots. GREEK NATIONALS Min FG FT R A PF T Stergakos 33 6-10 3-3 7 1 3 15 Andritsos 13 0-1 0-0 2 3 0 0 Ioannou 36 2-8 7-9

Halftime: George Washington, 47-26.

Three-point goals -- Greek Nationals: Stavropoulos 2-3; George Washington: Jackson 2-3, Smith 1-1, Sitney 1

Technical fouls -- Fassoulas.

A -- 3,216.