| Final | Team | time | | 1. Stephen Clark | USA | 54.7s | | 2. Steven Jackman | USA | 54.8s | | 3. Daniel Sherry | CAN | 56.1s | | 4. John Gilchrist | CAN | 56.5s | | 5. Alberto O`Avila | BRA | 56.8s | | 6. Luis Nicalao | ARG | 56.9s | | 7. Peter Montaner | BRA | 5...s | | 8. Dionizio Lozada | VEN | 1:00.0 |
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| Heat 1 | Team | time | Rk. | | 1. Daniel Sherry | CAN | 56.6s | 5. | | 2. Peter Montaner | BRA | 57.3s | 6. | | 3. Steven Jackman | USA | 57.6s | 7. | | 4. Dionizio Lozada | VEN | 59.2s | 8. | | 5. Angel Belido | ARG | 59.4s | 10. | | 6. Abel Mario Pepe | ARG | 59.8s | 11. | | 7. Roaldil Balleto | URU | 1:00.4 | 14. |
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| Heat 2 | Team | time | Rk. | | 1. Stephen Clark | USA | 54.7s | 1. | | 2. Luis Nicalao | ARG | 55.9s | 2. | | 3. Alberto O`Avila | BRA | 56.2s | 3. | | 4. John Gilchrist | CAN | 56.3s | 4. | | 5. Vicente Caprite | VEN | 59.2s | 8. | | 6. Luis Staudl | PER | 59.8s | 11. | | 7. Osvaldo Aparicio | ECU | 1:00.0 | 13. | | 8. Carlos Fraga | URU | 1:01.0 |
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| Swim-off | Team | time | Rk. | | 1. Dionisio Losada | VEN | 59.2s | 8. | | 2. Vincent Caparte | VEN | 59.2s | 9. |
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