| Category | Open Wheel Racing |
|---|---|
| Country or region | Australia |
| Inaugural season | 1964 |
| Folded | 1968 |
| Last Drivers' champion | Max Stewart Garrie Cooper |
The Australian 1½ Litre Championship was a CAMS sanctioned national motor racing title contested annually from 1964 to 1968. It was open to drivers of cars complying with the Australian 1½ Litre Formula which specified open wheel racing cars fitted with unsupercharged engines using commercially available fuel and limited to 1500cc capacity. The title was staged over a single race in the first two years and over a series of races in the last three.
| Year | Champion | Car |
|---|---|---|
| 1964 | Greg Cusack | Repco Brabham Ford |
| 1965 | Bib Stillwell | Repco Brabham Ford |
| 1966 | John Harvey | Repco Brabham Ford |
| 1967 | Max Stewart | Rennmax Ford |
| 1968 | Max Stewart Garrie Cooper |
Rennmax Ford Elfin Ford |