| Nashville 400 | Date: | 7/30/1966 |
| Finish | Start | CarNo | Driver | Laps | Status | Division: | Cup |
| 1 | 1 | 43 | Richard Petty | 400 | Running |
| 2 | 13 | 87 | Buck Baker | 395 | Running |
| 3 | 2 | 2 | Bobby Allison | 394 | Running |
| 4 | 19 | 74 | Henley Gray | 383 | Running |
| 5 | 14 | 4 | John Sears | 383 | Running |
| 6 | 18 | 88 | Neil Castles | 378 | Running |
| 7 | 20 | 20 | Clyde Lynn | 378 | Running |
| 8 | 8 | 97 | Coo Coo Marlin | 375 | Running |
| 9 | 16 | 34 | Wendell Scott | 375 | Running |
| 10 | 9 | 48 | James Hylton | 352 | Throttle |
| 11 | 27 | 44 | Larry Hess | 320 | Running |
| 12 | 15 | 18 | Stick Elliott | 308 | Engine failure |
| 13 | 3 | 49 | G.C. Spencer | 287 | Differential |
| 14 | 28 | 61 | Joel Davis | 268 | Oil leak |
| 15 | 21 | 3 | Buddy Arrington | 262 | Differential |
| 16 | 7 | 39 | Friday Hassler | 256 | Drive shaft |
| 17 | 6 | 64 | Elmo Langley | 250 | A-frame |
| 18 | 23 | 38 | Wayne Smith | 220 | Engine failure |
| 19 | 26 | 94 | Don Biederman | 214 | Oil leak |
| 20 | 11 | 19 | J.T. Putney | 171 | Engine failure |
| 21 | 29 | 9 | Roy Tyner | 141 | Oil leak |
| 22 | 4 | 1 | Paul Lewis | 100 | Engine failure |
| 23 | 24 | 70 | J.D. McDuffie | 54 | Overheating |
| 24 | 5 | 02 | Doug Cooper | 49 | Engine failure |
| 25 | 17 | 53 | Marty Robbins | 48 | Oil leak |
| 26 | 22 | 93 | Blackie Watt | 21 | Radiator |
| 27 | 12 | 06 | Johnny Wynn | 2 | Accident |
| 28 | 10 | 24 | Darel Dieringer | 0 | Accident |