| 1 | 10 | Giuseppe FARINA | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 40 | |
| 2 | 14 | Luigi VILLORESI | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 40 | |
| 3 | 16 | Mike HAWTHORN | Scuderia Ferrari | Ferrari 625 | Ferrari L4 | 40 | |
| 4 | 2 | Jose-Froilan GONZALEZ | Officine Alfieri Maserati | Maserati A6GCM | Maserati L6 | 40 | |
| 5 | 26 | Robert MANZON | Equipe Gordini | Gordini T16 | Gordini L6 | 39 | |
| 6 | 8 | Oscar GALVEZ | Officine Alfieri Maserati | Maserati A6GCM | Maserati L6 | 38 | |
| 7 | 6 | Felice BONETTO | Officine Alfieri Maserati | Maserati A6GCM | Maserati L6 | 38 | |
| 8 | 28 | Maurice TRINTIGNANT | Equipe Gordini | Gordini T16 | Gordini L6 | 38 | |
| 9 | 4 | Juan Manuel FANGIO | Officine Alfieri Maserati | Maserati A6GCM | Maserati L6 | 38 | |
| 10 | 56 | Onofre MARIMON | Automovil Club Argentina | Ferrari 166 | Ferrari V12 | 35 | Engine |
| 11 | 52 | Alberto CRESPO | Privé | Alfa Romeo 8C-2900A | Alfa Romeo L8 | 35 | |
| 12 | 22 | John BARBER | Cooper Car Company | Cooper T23 | Bristol L 6 | 35 | |
| 13 | 54 | Clemar BUCCI | Clemar Bucci | Alfa Romeo 12C-37 | Alfa Romeo V12 | 34 | Crankcase |
| 14 | | Roberto MIERES | Juan Manuel Fangio | Alfa Romeo 8C-308 | Alfa Romeo L8 c | 33 | |
| ab | 58 | José Felix LOPEZ | Automovil Club Argentina | Ferrari 166 | Ferrari V12 | 22 | Exhaust |
| ab | 30 | Jean BEHRA | Equipe Gordini | Gordini T16 | Gordini L6 | 17 | Accident |
| ab | 24 | Adolfo SCHWELM-CRUZ | Cooper Car Company | Cooper T20 | Bristol L 6 | 8 | Engine |
| ab | | Remo GAMALERO | Privé | Maserati 4CLT | Maserati L4 | 5 | Engine |
| ab | 12 | Alberto ASCARI | Scuderia Ferrari | Ferrari 375 | Ferrari V12 | 2 | Connecting rod |
| ab | 20 | Alan BROWN | Cooper Car Company | Cooper T23 | Bristol L 6 | 1 | Crankshaft |
| ab | 32 | Carlos MENDITEGUY | Equipe Gordini | Gordini T16 | Gordini L6 | 1 | Engine |
| ab | 34 | Pablo BIRGER | Equipe Gordini | Simca Gordini T15 | Gordini L4 c | | Engine |
| ab | | José CISCAR | Privé | Talbot Lago T26C | Talbot L6 | | ? |
| ab | | Carlos FORTUNATI FIRPO | Automovil Club Argentina | Maserati 4CLT | Maserati L4 | | ? |