Turner finished with 11 points, while Shea " the tournament's most valuable player " contributed eight points for Shen, which won its first Sectional title since 2004.
Meg Olsen scored all four of Bethlehem's fourth-quarter points to finish with six points in support of McCullough's 14-point, 10-rebound night. Taylor Teal added five points.
It was the third time Shen had beaten Bethlehem this season, but also the closest game between the Suburban Council rivals. The Plainsmen won by margins of 52-32 and 44-33 earlier this season.
"Mark Nealon does a great job. I saw obvious improvements from our last game against them," said Strube. "They have a strong, young team, so they're going to be tough over the next few years."
"The whole idea is to believe in what you're doing, and they absolutely did," said Nealon. "When you go in there and you believe that you can win a basketball game and you don't win, it stings a little bit. But the girls are going to come out of the locker room with their heads high. It was a special year for us.""