Coach Roger Perry's team improved to 2-0 with the victory while Gallatin slipped to 1-1.
Gurchiek pounded out 183 yards rushing on 22 carries while completing 3-of-6 passing attempts for 156 yards. Vaughn Cornelia caught two passes for 126 yards and a score.
Mt. Juliet returns to action Sept. 11 as the Bears host Whites Creek.
Outmanned Lebanon dropped a 41-20 decision to Hendersonville High Friday at Nokes-Lasater Field.
The Commandos scored on each of their first five possessions, moving to 2-0 on the season. LHS slid to 1-2 with the loss.
"Hendersonville is an outstanding team," said Blue Devil coach Bobby Brown, "there wasn't a lot we could do with their big guys up front. Our kids kept fighting 'till the end."
Quarterback Patrick Maynard ran for 107 yards on 24 carries. He also completed 20-of-37 passes for 192 yards with two touchdowns. He was picked off twice.
Kelan Rhodes caught six passes for 60 yards and Phillip Vance hauled in five passes for 50.
Hendersonville cranked out 433 yards in total offense and nine first downs. LHS had 363 in offense and 18 first downs.
Lebanon hosts Cookeville High Friday, Sept. 11 at Nokes-Lasater Field.
Wilson Central dropped to 0-3 on the season with a 28-24 home loss to Beech Friday night.
Beech (2-1) took a 14 lead in the first quarter, but the Wildcats kept fighting back.
WCHS quarterback Hunter Cranford completed 24-of-39 passes for 177 yards. Alex Stewart was on the receiving end of 10 aerials for 66 yards.
Central will host Siegel High Friday, Sept. 11 for homecoming.