| Teams 1966 National 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | Paul Lewis | Paul Lewis | Plymouth |
| 3 | Fox Racing | Buddy Baker | Dodge |
| 4 | DeWitt Racing | John Sears | Ford |
| 5 | Butch Hartman | Butch Hartman | Dodge |
| 5 | Robert Harper | Donnie Allison | Chevrolet |
| 6 | Owens Racing | David Pearson | Dodge |
| 7 | Shorty Johns | Bobby Johns | Chevrolet |
| 11 | Bernard Alverez | Ned Jarrett | Ford |
| 12 | Jon Thorne | LeeRoy Yarbrough | Dodge |
| 13 | Smokey Yunick | Curtis Turner | Chevrolet |
| 14 | Friedkin Enterprises | Jim Paschal | Plymouth |
| 15 | Junior Johnson and Associates | Darel Dieringer | Ford |
| 19 | J.T. Putney | J.T. Putney | Chevrolet |
| 20 | Clyde Lynn | Clyde Lynn | Ford |
| 21 | Wood Brothers Racing | Cale Yarborough | Ford |
| 26 | Junior Johnson and Associates | Gordon Johncock | Ford |
| 27 | Matthews Racing | A.J. Foyt | Ford |
| 28 | Holman-Moody Racing | Fred Lorenzen | Ford |
| 29 | Holman-Moody Racing | Dick Hutcherson | Ford |
| 30 | Iggy Katona | Iggy Katona | Dodge |
| 31 | Nichels Engineering | Don White | Dodge |
| 33 | Jack Bowsher | Jack Bowsher | Ford |
| 34 | Scott Racing | Wendell Scott | Ford |
| 38 | Archie Smith | Wayne Smith | Chevrolet |
| 42 | Petty Enterprises | Marvin Panch | Plymouth |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 44 | Larry Hess | Larry Hess | Ford |
| 46 | Tom Hunter | Roy Mayne | Chevrolet |
| 47 | Toy Bolton | Stick Elliott | Chevrolet |
| 48 | Bud Hartje | James Hylton | Dodge |
| 49 | GC Spencer Racing | G.C. Spencer | Plymouth |
| 51 | Tinker Faulkner | George England | Chevrolet |
| 55 | Lyle Stelter | Tiny Lund | Ford |
| 56 | Norm Nelson | Jim Hurtubise | Plymouth |
| 64 | Elmo Langley & Henry Woodfield | Elmo Langley | Ford |
| 67 | Arrington Racing | Buddy Arrington | Dodge |
| 71 | K&K Racing | Earl Balmer | Dodge |
| 75 | Gene Black | Henley Gray | Ford |
| 79 | Harold Rhodes | Frank Warren | Chevrolet |
| 86 | Buck Baker Racing | Neil Castles | Dodge |
| 87 | Buck Baker Racing | Buck Baker | Oldsmobile |
| 98 | Nichels Engineering | Sam McQuagg | Dodge |
| 99 | Nichels Engineering | Paul Goldsmith | Plymouth |