Svindal was 0.07 seconds slower than Jansrud, whose time of 1:58.45 was also almost three-tenths of a second quicker than Svindal's leading effort in first training.
Austrian Klaus Kroell was third fastest, four-tenths back from Svindal.
"A good day for the two racers from team Norway @Val di Gardena," Svinal, who already has two wins this season under his belt - both in Lake Louise - tweeted.
Snow has been forecast to arrive on Friday night and into Saturday at Val Gardena, meaning the order of events may be reversed, with the downhill coming forward to Friday and the super-G postponed until Saturday.
Results:
1 JANSRUD Kjetil 1985 NOR 1:58.45
2 SVINDAL Aksel Lund 1982 NOR 1:58.52
3 KROELL Klaus 1980 AUT 1:58.90
4 GUAY Erik 1981 CAN 1:58.91
5 PARIS Dominik 1989 ITA 1:59.29
6 THEAUX Adrien 1984 FRA 1:59.30
7 HEEL Werner 1982 ITA 1:59.32
8 KLOTZ Siegmar 1987 ITA 1:59.37
9 SULLIVAN Marco 1980 USA 1:59.39
10 CLAREY Johan 1981 FRA 1:59.62
