Nene arrived at the Boleyn Ground last week and he has impressed his new manager, who has already noticed some of his main strengths.
Allardyce has noted Nene's movement, which helps him find pockets of space, and has also spoken highly of the 33-year-old's technical ability.
"Nene will be in the squad tomorrow," Allardyce confirmed. "He’s an intelligent player, good technically, finds space. He just has to cope with the physical aspect of the game and if he can do that, the talent and experience is definitely there and since he’s travelled from Brazil to join us, so is the desire."
Nene offers a different sort of threat to West Ham's current striking options, with his finesse contrasting the bludgeoning styles of their regular forward line.
The likes of Enner Valencia, Diafra Sakho and Carlton Cole are noted more for their physicality than their creativity and Allardyce will be pleased to have more options available to him.
West Ham have struggled for form of late, with their performances falling short of the standards they set themselves at the start of the season, and if Nene does get on against Crystal Palace this weekend he will need to reinvigorate their attacking unit.
The Hammers looked like one of the most threatening teams in England at the start of the campaign, but their build up play is not as creative or as quick now.
Nene has the capability to improve things, but at this stage of his career it will be a tough ask to do so and he will need to prove that he has not lost too much of the ability than made him such a star in Ligue 1 with Monaco and Paris St Germain.