Skipper Jacob Rowan (Leeds Carnegie) returns to the back row after he was rested against France. Also back in the starting line-up is No.8 Jackson Wray (Saracens) who made such an impact coming off the bench against the French.
Flyer Christian Wade (London Wasps) returns to the wing and Charlie Davies (Stade Francais) starts at scrum half with IRB JWC all-time leading points scorer Tom Homer (London Irish) also returning at full back.
Australia beat South Africa in Santa Fe in their final pool game to set up the latest battle against the old enemy in Rosario.
England for their part will return to the familiarity of Newell's Old Boys FC full of confidence having won all three of their pool games there in the shadow of the Diego Maradona stand.
But Head Coach Mark Mapletoft, knows that the junior Wallabies will be a difficult team to overcome:
"I've been very impressed with Australia, especially in their performance against South Africa, scoring five tries against what looked like a very good South African team. They'll present a difficult hurdle for us to overcome. At the same time our preparation has been very good and we've managed to be successful in the semis in the last two years and we'd love to go one better."
There is a good feeling in the camp at the moment, all 26 guys are fit and raring to go. We've managed to rotate the squad a little bit while winning games. Looking at the side we've selected a fifteen to win the game but looking at the bench, I'm sure those guys will come on and have an impact."
England U20 v Australia U20
IRB JWC, Stadio Coloso de Parque, Rosario
Thursday June 17
Kick off 14.10 local (18.10 GMT)
15. Tom Homer (London Irish), 14. Christian Wade (London Wasps), 13. Andrew Forsyth (Leicester Tigers), 12. Tom Casson (Harlequins), 11. Sam Smith (Harlequins), 10. Rory Clegg (Harlequins), 9. Charlie Davies (Stade Francais), 1. Joe Marler (Harlequins), 2. Jamie George (Saracens), 3. Shaun Knight (Gloucester), 4. Calum Green (Leicester Tigers), 5. Charlie Matthews (Harlequins), 6. Jamie Gibson (London Irish), 7. Jacob Rowan (Leeds Carnegie, captain), 8. Jackson Wray (Saracens)
16. Arthur Ellis (London Wasps), 17. Lee Imiolek (Sale Sharks), 18. George Kruis (Saracens), 19. Will Welch (Newcastle Falcons), 20. Sam Harrison (Leicester Tigers), 21. Freddie Burns (Gloucester), 22. Jonny May (Gloucester)