Firestone
Engines
Engines
GP
Ford Cosworth
539
Offenhauser
393
BRM
219
Ferrari
149
Maserati
51
Climax
26
Honda
23
Alfa Romeo
11
Novi
10
Tecno
10
Repco
9
Pratt & Whitney
3
Ford
3
Cummins
2
Serenissima
1