400 m Freestyle, Men

Competition	1956 South American Aquatics Championships
Venue	Viña del Mar CHI
Held	14 – 16 February 1956
Status	Medal
Competitors	8
Countries	6

Pos	Athlete(s)	Country	Mark
🥇	Gilberto Martínez	COL	4:39.9
🥈	Sylvio dos Santos	BRA	4:43.5
🥉	Óscar Kramer	ARG	4:47.9
4	Jorge Vogt	ARG	4:49.9
5	Raúl Modenesi	PER	4:49.9
6	Gonzalo Mari	URU	4:53.0
7	Guillermo Villalobos	CHI	4:53.2
8	Francisco Muller	BRA	4:54.5