The 1997 AC Delco 400 was the 30th stock car race of the 1997 NASCAR Winston Cup Series and the 23rd iteration of the event. The race was originally scheduled to be held on Sunday, October 26, 1997, but was postponed to Monday, October 27, due to rain. The race was held in Rockingham, North Carolina, at North Carolina Speedway, a 1.017 miles (1.637 km) permanent high-banked racetrack. The race took the scheduled 393 laps to complete. In the final laps of the race, Petty Enterprises driver Bobby Hamilton would manage to make a late-race charge to lead to take his second career NASCAR Winston Cup Series victory and his only victory of the season. To fill out the top three, Robert Yates Racing driver Dale Jarrett and Hendrick Motorsports driver Ricky Craven would finish second and third, resp