4 x 400 m Relay, Men
| Competition | 1977 South American Athletics Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 12 |
| Countries | 3 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Brazil |  BRA |
3:15.1 | ||
| Delmo da Silva | — | ||||
| Donizete Soares | — | ||||
| Pedro Teixeira | — | ||||
| Djalma Pereira de Oliveira | — | ||||
| 🥈 | Venezuela |  VEN |
3:17.4 | ||
| Héctor López | — | ||||
| Hipólito Brown | — | ||||
| Alexis Herrera | — | ||||
| Moisés Zambrano | — | ||||
| 🥉 | Chile |  CHI |
3:23.1 | ||
| Emilio Ulloa | — | ||||
| Cristián Molina | — | ||||
| Rafael Rossi | — | ||||
| Ariel Santolaya | — |