| Teams for 1966 Firecracker 400 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 00 | Emory Gilliam | Roy Mayne |  |
| 2 | J.D. Bracken | Bobby Allison |  |
| 02 | Bob Cooper | Doug Cooper |  |
| 3 | Fox Racing | Buddy Baker | |
| 4 | DeWitt Racing | John Sears |  |
| 04 | Friedkin Enterprises | Marvin Panch | |
| 5 | Owens Racing | Mario Andretti | |
| 06 | John McCarthy | Jack Lawrence |  |
| 6 | Owens Racing | David Pearson | |
| 7 | Shorty Johns | Bobby Johns | |
| 12 | Jon Thorne | LeeRoy Yarbrough | |
| 13 | Smokey Yunick | Curtis Turner | |
| 14 | Friedkin Enterprises | Jim Paschal | |
| 16 | Bud Moore Engineering | Darel Dieringer | |
| 19 | J.T. Putney | J.T. Putney | |
| 24 | Betty Lilly | Tiny Lund | |
| 25 | Jeff Handy | Jabe Thomas | |
| 31 | Nichels Engineering | Don White | |
| 33 | Curtis Satterfield | Joel Davis | |
| 34 | Scott Racing | Wendell Scott | |
| 38 | Archy Smith | Wayne Smith | |
| 39 | J.H. Crawford | Bunkie Blackburn | |
| 43 | Petty Enterprises | Richard Petty | |
| 44 | Larry Hess | Larry Hess | |
| 48 | Bud Hartje | James Hylton | |
| 49 | GC Spencer Racing | G.C. Spencer | |
| 53 | David Warren | Jimmy Helms | |
| 55 | Lyle Stelter | Harold Smith | |
| 56 | Norm Nelson | Jim Hurtubise | |
| 64 | Langley Racing | Elmo Langley | |
| 67 | Arrington Racing | Buddy Arrington | |
| 70 | McDuffie Racing | J.D. McDuffie | |
| 71 | K&K Racing | Earl Balmer | |
| 79 | Harold Rhodes | Frank Warren | |
| 86 | Buck Baker | Buck Baker | |
| 89 | Buck Baker | Eddie MacDonald | |
| 93 | Harry Neal | Blackie Watt | |
| 97 | Henley Gray Racing | Henley Gray | |
| 98 | Nichels Engineering | Sam McQuagg | |
| 99 | Nichels Engineering | Paul Goldsmith | |
