Australia's formidable swim team heads for the Olympics this week headlined by two superstars of the sport in Ariarne Titmus and Kaylee McKeown as they look to snap a 68-year drought against archrivals the United States.

The pool squad was whittled down after six intense days of trials that culminated in Brisbane on Saturday, with bettering their haul from Tokyo three years ago the immediate target.

"I'm excited, really excited, we have a great group of athletes," said head coach Rohan Taylor, who steered them to nine gold and 21 medals overall in Japan behind only the all-conquering Americans.