400 m Freestyle, Men

Competition	1966 South American Aquatics Championships
Venue	Lima PER
Held	—
Status	Medal
Competitors	5
Countries	4

Pos	Athlete(s)	Country	Mark
🥇	Julio Arango	COL	4:23.6
🥈	Mario de Lucca	ARG	4:24.8
🥉	Carlos van der Maath	ARG	4:29.0
4	Juan Carlos Bello	PER	4:34.7
5	Fernando González	ECU	4:43.7