Hide engine manufacturers with less than 10 entries
Hide engine manufacturers who only participated in Indy 500
Ignore non-championship races
| No | Engine Manufacturer | Races | Active Years |
|---|
| 31 | Cadillac (Non-champ only) | 2 |
1949, 1952 |
| 32 | Castellotti | 4 |
1960 |
| 33 | Chevrolet (Non-champ only) | 99 |
1960 - 1962, 1968 - 1975 |
| 34 | Chrysler (Non-champ only) | 1 |
1962 |
| 35 | Cisitalia (Non-champ only) | 28 |
1946 - 1949, 1952 - 1953 |
| 36 | Citroën (Non-champ only) | 10 |
1946 - 1947, 1960 |
| 37 | Climax | 250 |
1952 - 1953, 1956 - 1969 |
| 38 | Connaught (Non-champ only) | 54 |
1952 - 1958, 1960 - 1961 |
| 39 | Cooper (Non-champ only) | 1 |
1950 |
| 40 | Corvette (Non-champ only) | 3 |
1960 - 1961 |
| 41 | Cosworth | 316 |
1964 - 1965, 1967 - 1981, 1983, 2000 - 2006, 2010 - 2013 |
| 42 | CTA (Non-champ only) | 1 |
1947 |
| 43 | Cummins (Indy only) | 2 |
1950, 1952 |
|
|
