| 94th WRC rally |
| Round of season: | 7 of 12 |
| Official name: | Rally Codasur |
| Edition: | 3rd |
| Date: | from Saturday 18-Jul-1981 to Thursday 23-Jul-1981 |
| Rally HQ: | San Miguel de Tucuman, Tucuman; Argentina |
| Surface: | Gravel |
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| Entries: | 103 | |
| Starters: | 80 | |
| Finishers: | 26 | (32.5% of starters) |
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| Stages: | 17 | |
| Shortest: | 14.00 | km | (SS1 La Pampa) |
| Longest: | 158.30 | km | (SS12 Belen - Palo Seco) |
| Slowest: | 68.10 | km/h | (SS3 El Alto - Alijilan) |
| Fastest: | 161.34 | km/h | (SS6 Quilmes - Cafayate) |
| Planned stage distance: | 1,346.60 | km | (34.5% of total distance) |
| Actual stage distance: | 1,332.60 | km | (34.2% of total distance) |
| Road section distance: | 2,565.40 | km |
| Total distance: | 3,898.00 | km |
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