I have found three photographs of this car at Caversham Raceway, entitled simply "the 60s". It is known as the Pegasus Special, with a Ford engine, but engine size is not quoted, nor the year of build. Since at this time in history the Australian racing scene was still to some extent relying on outdated machinery, I reckon the engine was still a 1500cc pushrod, rather than a later 1300/1600 affair.