Australia captain Aaron Finch declared his side will continue "tinkering" until the start of the T20 World Cup after starring in a three-wicket win over West Indies on Wednesday.

The Windies set a total of 145-9 before reducing Australia to 58-5 within eight overs on the Gold Coast, but Finch (58) and Matthew Wade (39 not out) led the hosts' successful recovery.

Taking an unfamiliar role at number four in the batting order, Finch moved to within 27 runs of becoming the first Australia batsman to score 3,000 runs in T20I history.

The world champions have experimented with their line-up in recent outings, including when Cameron Green opened during last month's tour of India, and Finch expects that to continue. 

"Both teams were sloppy if they are honest with themselves," he said. "But it's good to get across the line.

"We knew that total would be a challenge on that wicket, we did really well early and they took wickets in the middle.

"It would have been nice to get us over the line, I was trying to target the boundary but mishit one. I didn't like getting the first one in the head, but I really enjoy batting in the middle order. 

"It was just something different, we might change it up in the next match. We are going to keep tinkering with things until we get to the World Cup."

Australia will begin their defence of the World Cup against New Zealand on October 22 at the Sydney Cricket Ground.