Cut cake into 1 1/2-inch squares. In large bowl, beat whipping cream with electric mixer on high speed until thickened. Slowly beat in remaining pie filling; continue beating until thickened. Place 1/3 of the cake cubes in bottom of 2-quart clear glass bowl. Spread with 1/3 of the cream mixture. Arrange 1/3 of the pears on cream mixture. Repeat layers twice with cake, cream mixture and pears. Cover; refrigerate at least 12 hours.