| Teams 1966 Maine 100 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | Emory Gilliam | Buddy Baker | Dodge |
| 2 | Donald Brackens | Bobby Allison | Chevrolet |
| 3 | Ed Ackerman | Rene Charland | Ford |
| 4 | DeWitt Racing | John Sears | Ford |
| 6 | John McCarthy | Jack Lawrence | Mercury |
| 6 | Owens Racing | David Pearson | Dodge |
| 9 | Truett Rodgers | Roy Tyner | Chevrolet |
| 11 | Bernard Alverez | Ned Jarrett | Ford |
| 15 | Lyle Stelter | Fats Caruso | Ford |
| 19 | J.T. Putney | J.T. Putney | Chevrolet |
| 20 | Clyde Lynn | Clyde Lynn | Ford |
| 34 | Scott Racing | Wendell Scott | Ford |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 48 | Bud Hartje | James Hylton | Dodge |
| 53 | David Warren | Jimmy Helms | Ford |
| 55 | Lyle Stelter | Tiny Lund | Ford |
| 64 | Elmo Langley & Henry Woodfield | Elmo Langley | Ford |
| 70 | McDuffie Racing | J.D. McDuffie | Ford |
| 73 | Joan Petre | Ernie Gahan | Ford |
| 86 | Buck Baker Racing | Ray Hill | Dodge |
| 87 | Buck Baker Racing | Neil Castles | Oldsmobile |
| 88 | Buck Baker Racing | Buck Baker | Chevrolet |
| 93 | Harry Neal | Blackie Watt | Ford |
| 94 | Ron Stotten | Don Biederman | Chevrolet |
| 97 | Henley Gray Racing | Henley Gray | Ford |
| 127 | Roy Hallquest | Roy Hallquist | Ford |