| Teams 1970 Firecracker 400 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 4 | John Sears | John Sears | Dodge |
| 5 | Arrington Racing | Buddy Arrington | Dodge |
| 6 | Castle Racing | Neil Castles | Dodge |
| 6 | Owens Racing | Buddy Baker | Dodge |
| 7 | Cunningham-Kelley Racing | Coo Coo Marlin | Chevrolet |
| 8 | Negre Racing | Ed Negre | Ford |
| 10 | Champion Racing | Bill Champion | Ford |
| 16 | Ken Spikes | Roy Mayne | Chevrolet |
| 17 | Holman-Moody Racing | David Pearson | Ford |
| 18 | Frasson Racing | Joe Frasson | Dodge |
| 19 | Henley Gray Racing | Henley Gray | Ford |
| 21 | Wood Brothers Racing | Cale Yarborough | Mercury |
| 22 | Rossi's Automotive Engineering | Bobby Allison | Dodge |
| 24 | Gordon Racing | Cecil Gordon | Ford |
| 25 | Robertson Racing | Jabe Thomas | Plymouth |
| 27 | Matthews Racing | Donnie Allison | Ford |
| 28 | Fox Racing | Fred Lorenzen | Dodge |
| 30 | Marcis Auto Racing | Dave Marcis | Dodge |
| 31 | O.L. Nixon Racing | Jim Vandiver | Dodge |
| 32 | Dick Brooks Racing | Dick Brooks | Plymouth |
| 34 | Scott Racing | Wendell Scott | Ford |
| 36 | Richard Brown | Don Tarr | Plymouth |
| 39 | James Hanley | Friday Hassler | Chevrolet |
| 40 | Petty Enterprises | Pete Hamilton | Plymouth |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 45 | Siefert Racing | Bill Seifert | Ford |
| 48 | Hylton Engineering | James Hylton | Ford |
| 57 | Ervin Pruitt | Johnny Halford | Dodge |
| 64 | Langley Racing | Elmo Langley | Mercury |
| 68 | Allan Schlauer | Larry Baumel | Ford |
| 70 | McDuffie Racing | J.D. McDuffie | Ford |
| 71 | K&K Racing | Bobby Isaac | Dodge |
| 72 | DeWitt Racing | Benny Parsons | Ford |
| 74 | Shirey Racing | Bill Shirey | Plymouth |
| 76 | Ben Arnold | Ben Arnold | Ford |
| 79 | Warren Racing | Frank Warren | Plymouth |
| 84 | Davis Racing | Bobby Mausgrover | Dodge |
| 89 | Morris Davis | Gary DuPuis | Ford |
| 98 | Junior Johnson and Associates | LeeRoy Yarbrough | Mercury |
| 99 | Nichels Engineering | Charlie Glotzbach | Dodge |