Chivas won the 1967 Surfers Paradise Four Hour race with Kevin Bartlett in a Mildren team Alfa Romeo Giulia Super.
He registered class wins at the Bathurst 500 in 1963, 1967 and 1968 and won a hard-fought final round of the Toby Lee Series in 1971 driving a Chrysler Valiant Charger E38.
In 1972 Chivas achieved the best result for the Chrysler team at Bathurst by finishing third outright and second in class in a Charger E49.
While co-driving with Peter Brock in the Holden Dealer Team's leading LJ Torana GTR XU-1 the car ran out of fuel and had to be pushed by Chivas, unaided (as per the rules), along part of pit lane that went slightly uphill.
The exhausted 51-year-old had to be supported by pit crew after the effort of pushing the car in the hot conditions (and being flung aside by an anxious Brock), but the time lost may have cost the Brock/Chivas Torana a Bathurst victory.