Despite registering their third big win in a row to take an unbeatable 3-0 lead, Clarke said Australia hoped to inflict even more pain when the series resumes in Melbourne.
Emphatic victories in Brisbane, Adelaide and now Perth have returned the trophy to Australia for the first time since 2007 and left old enemy England reeling.
"This is a special feeling," Clarke said of his first Ashes series win as skipper.
"You won't find one guy in the change room, player or support staff, who won't say this is the pinnacle, playing Test cricket against England.
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"We will turn up in Melbourne 100 percent ready to go and be doing everything we have done in first three Test matches."
Clarke is the only player in the Australian team to have experienced an Ashes series win before, when the home team thrashed England 5-0 in 2006-2007.
However, he said the job was not complete, with Australia looking for another white-wash by winning the remaining two Tests in Melbourne and Sydney.
Clarke also hailed coach Darren "Boof" Lehmann, who took over with Australia in disarray just before this year's earlier Ashes series in England.
The captain said the Australians had worked harder on their game over the last 12 months than at any other point of his career.
"Boof's been fantastic, no doubt about it," he said. "There's been a lot of people behind the scenes."
Australia named an unchanged squad of 12 players for the Melbourne Test, with Lehmann indicating he hoped to stick with the same team. "If they're fit that eleven will play," he said.