1973 Phillip Island 500K

The 1973 Phillip Island 500K was an endurance race for Group C Touring Cars, staged at the Phillip Island circuit in Victoria, Australia on 25 November 1973. Race distance was 106 laps of the 4.73 km circuit, a total distance of 501.38 km. The race, which was the fifth and final round of the 1973 Australian Manufacturers' Championship, was the third Phillip Island 500.

The race was won by Peter Brock, driving a Holden LJ Torana GTR XU-1 for the Holden Dealer Team.

Classes
Cars competed in four engine capacity classes.
 * Class A: Up to 1300cc
 * Class B: 1301 – 2000cc
 * Class C: 2001 – 3000cc
 * Class D: Over 3000cc