But coach Tony Smith, whose side beat Wales 48-12 in a warm-up game in Bridgend last Friday, has named a new-look squad for the Four Nations.
He has included Super League young player of the year Sam Tomkins from Wigan along with highly-rated youngsters Kyle Eastmond of St Helens and Warrington-bound Richie Myler.
"There are some real good young players in the squad as well as some more experienced faces so it has a good blend and it is looking promising," said Leeds star Peacock.
"Some of the younger players are full of confidence and it is up to us as senior players to nurture that and making sure they go out and play with that form because sometimes they can be overawed."
Smith admits his side cannot match the pace and skill of Australia's star-studded backline but Peacock says the likes of Billy Slater, Greg Inglis and Jarryd Hayne might not prosper in the English conditions.
Peacock is hoping to make up for a disappointing World Cup
"It's a pretty special backline and hopefully the weather will slow them down a bit," he said.
"I'm sure Smithy will come up with some ideas but at the moment I'm relying on the weather."
Australia coach Tim Sheens believes that playing at home will give England a significant advantage, insisting that the success enjoyed by English clubs in the annual World Club Challenge held on British soil is more relevant than Australia's 52-4 defeat of Smith's men in Melbourne last November.
"We've only got three players who have actually toured and played more than one game in a row," he said.
"A lot of them have been here on a one-off occasion with the World Club Challenge and they've been reminded that, when you play in these conditions, the English are no pushovers.
"What happened in the World Cup with England and Australia and what's going to happen over here are two different things. The cricket reminded us of that."
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