The England prop is set to win his 36th Test cap in Saturday's opening World Cup showdown in Dunedin - but his first against the Pumas.
England face a tough pool with the heavy-scrummaging Georgia and Romania to follow before the tete-a-tete with Scotland in Auckland, when quarter-final places will be on the line.
That is just the challenge that excites Stevens, who feels as if he is making "a new start" with England after coming back from a two-year drugs ban.
On Saturday, Stevens is likely to come across figures such as Mario Ledesma, Marcos Ayerza, Rodrigo Roncero or Martin Scelzo who he believes would all challenge for a World XV.
"Argentina have got some great front rows and we are relishing the challenge," said Stevens.
"Scrummaging is about experience. Front row players get better with age and that is the case of Argentina.
"Their front row would definitely be pushing to be the best in the world. The Argentinian front row are good ball carriers as well, they are not just scrummagers.
"What you will notice about Argentinian sides is that it is an eight-man effort. I think they were the first team to really spearhead scrummaging as an eight.
"That is what we have done as a pack in the last four or five years. We have tried to push our work with the clubs and with England to scrum as an eight.
"New Zealand are very good at it, the South Africans are coming up but the Argentina spearheaded it in and we are matching them."
Stevens, who will discover on Thursday whether he starts against the Pumas, was the chief guitar player in the England squad in 2007.
'The Gambler' by Kenny Rogers was adapted as the tour song at that World Cup.
England are yet to finalise a tune for this trip - but they have at least four guitar players in the squad so should be able to think of something bonding.
"It was 'The Gambler' a few years ago. It is a good team spirit. Manu has got his, Matt Banahan has got his, Jonny has got his - he is very good at it, like everything.
"Music is a big part of any World Cup whether it is the fans playing and singing their different songs or the teams.
"It was definitely a binding experience, that last World Cup, and I am sure we will get it in there."
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