While questions remain over who will fill the No. 6 spot in the batting order and who will take the gloves for Australia's Ashes campaign, confidence within the bowling unit is sky-high.

Australia's first choice bowlers share a "pretty special bond" that has them "forever texting each other and calling each other", and Lyon hopes that mateship will steel Australia's bid for Ashes triumph.

Starc completed his Ashes preparations by achieving the astonishing feat of claiming two hat-tricks in one match to spearhead New South Wales to victory against Western Australia.

The 27-year-old and his Test comrades Lyon, Josh Hazlewood and Pat Cummins have turned their attention to reclaiming the prized Ashes urn having dismantled the Warriors.

Almost immediately after Starc's herculean effort gifted the Blues an outright victory their minds started to wander to the first Ashes Test at the Gabba beginning on November 23.

"It was just the four of us sitting there [in the change rooms] talking about the confidence that we're taking out of a performance like that, when they were 0-179 and all out for 223," Lyon said.

"It's a pretty special bond that we've got there at the moment so we're looking forward come [Brisbane] and the rest of the Test matches that we can have some results like that.

"The best thing about the four of us is that we're really good mates. We hang together all the time off the field as well. We're forever texting each other and calling each other, so we're actually really good mates.

"In that sense, you want to see your mates do well, so it does help when you're trying to build a combination and bond with each other. It's something pretty special."

Lyon will be just one of three players left standing from Australia's 5-0 Ashes whitewash four seasons ago alongside captain Steve Smith and his deputy David Warner.

It was a summer in which fiery paceman Mitchell Johnson ripped apart an England line-up and Lyon hopes a pair of Sheffield Shield hat-tricks have Starc primed to do the same.

"I've never seen it before. I don't think I've ever played in a team that's got a hat-trick, so to have [two] 30 hours apart was pretty special," Lyon said.

"Hopefully [England] were watching. It was a pretty good performance [against Western Australia]. You look at Steve Smith who got a big hundred there.

"Then you look at the bowling attack, we did the job on a pretty flat wicket on a postage stamp for a ground. It's good signs.

"I know they're all pretty keen, pretty excited and they can't stop talking about [the Ashes] so to be a part of that bowling unit, it's going to be pretty special."

Former Test paceman Stuart Clark says Starc needs to bowl smarter against England given both hat-tricks came against tail-enders.

But pace certainly won't be an issue according to WA coach Justin Langer, who told Clark "the batsmen just stand no chance" against Starc's frightening pace.

Test hopeful Jason Behrendorff was dismissed in each Starc hat-trick but Lyon was still impressed by the Canberra product's prowess with the ball.

Behrendorff is desperate to make his Test debut but will be consigned to waiting in the wings unless one of Australia's leading quicks is injured or rested.

England's Ashes preparations were dealt a blow when paceman Steve Finn was ruled out with a knee injury, with 22-year-old Tom Curran called in as a replacement.

THE ASHES

November 23: First Test - Australia v England at the Gabba, Brisbane. Play starts at 11am AEDT.