| Teams 1970 Mason-Dixon 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | Phil Dickerson | Cliff Tyler | Chevrolet |
| 3 | Walt Valerio | Tommy Gale | Mercury |
| 4 | John Sears | John Sears | Dodge |
| 6 | Castle Racing | Neil Castles | Dodge |
| 6 | Owens Racing | Buddy Baker | Dodge |
| 8 | Negre Racing | Ed Negre | Ford |
| 10 | Champion Racing | Bill Champion | Ford |
| 17 | Holman-Moody Racing | David Pearson | Ford |
| 18 | Frasson Racing | Joe Frasson | Plymouth |
| 19 | Henley Gray Racing | Henley Gray | Ford |
| 22 | Rossi's Automotive Engineering | Bobby Allison | Dodge |
| 24 | Gordon Racing | Cecil Gordon | Ford |
| 25 | Robertson Racing | Jabe Thomas | Plymouth |
| 26 | Brooks Racing | Earl Brooks | Ford |
| 30 | Marcis Auto Racing | Dave Marcis | Dodge |
| 34 | Scott Racing | Wendell Scott | Ford |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 45 | Siefert Racing | Bill Seifert | Ford |
| 48 | Hylton Engineering | James Hylton | Ford |
| 54 | Bill Dennis | Bill Dennis | Chevrolet |
| 58 | Robert Brown | Buck Baker | Chevrolet |
| 64 | Langley Racing | Elmo Langley | Mercury |
| 65 | Joe Phipps | Joe Phipps | Chevrolet |
| 67 | Ron Ronacher | Dick May | Ford |
| 68 | Allan Schlauer | Larry Baumel | Ford |
| 70 | McDuffie Racing | J.D. McDuffie | Mercury |
| 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 |
| 77 | Bob Freeman | John Kenney | Ford |
| 79 | Warren Racing | Frank Warren | Plymouth |
| 84 | Davis Racing | Raymond Williams | Ford |
| 87 | John Pemberton | Lee Roy Carrigg | Ford |
| 92 | Roy Tyner | Roy Tyner | Ford |
| 99 | Nichels Engineering | Charlie Glotzbach | Dodge |