Already 3-1 up in the series with the urn secured for another 18 months, Australia finished the day on 518 for seven with Smith 129 not out and Beau Webster unbeaten on 42
At tea on day three, the hosts were 119-2 with Usman Khawaja partnering Head on 27 as they set about piling up a big total to put the five-match series out of England's reach