| Teams for 1971 Islip 250 |
|---|
| Car | Team | Driver | Mfg |
|---|---|---|---|
| 8 | Negre Racing | Ed Negre |  |
| 10 | Champion Racing | Bill Champion | |
| 19 | Henley Gray Racing | Henley Gray | |
| 23 | Robertson Racing | Jabe Thomas |  |
| 24 | Gordon Racing | Cecil Gordon |  |
| 25 | Robertson Racing | James Cox | |
| 34 | Scott Racing | Wendell Scott | |
| 40 | Ulrich Racing | D.K. Ulrich | |
| 43 | Petty Enterprises | Richard Petty | |
| 45 | Siefert Racing | Bill Seifert | |
| 48 | Hylton Engineering | James Hylton | |
| 49 | GC Spencer Racing | G.C. Spencer | |
| 62 | K-Automotive Performance | Bennis Listman |  |
| 64 | Langley Racing | Dick May | |
| 70 | McDuffie Racing | J.D. McDuffie | |
| 73 | Churchill Motorsports | Jerry Churchill | |
| 74 | Shirey Racing | Bill Shirey | |
| 77 | Roberts Racing | Charlie Roberts | |
| 79 | Warren Racing | Frank Warren | |
| 89 | Wiltshire Racing | George Wiltshire | |
| 96 | Garn Racing | Richard Childress |  |
