| 1960 | – | – | | Offenhauser | Firestone | |
| 1959 | – | – | | Offenhauser | Firestone | |
| 1958 | – | – | | Offenhauser | Firestone | |
| 1957 | – | – | | Offenhauser | Firestone | |
| 1956 | – | – | | Offenhauser | Firestone | |
| 1953 | – | – | | Offenhauser | Firestone | |
| 1952 | – | – | | Offenhauser | Firestone | |
| 1951 | – | – | | Offenhauser | Firestone | |
| 1950 | – | – | | Offenhauser | Firestone | |