West Ham have allowed the teenage striker to link up with Palace as Gianfranco Zola wants Sears to build up his experience.
Sears is eager to get started with Palace and is confident he will benefit from the opportunity to feature for Neil Warnock's side.
"I can't wait at the minute," Sears told the Hammers' official website. "I want to get a good pre-season behind me and then go from there.
"I'll get more experience from playing week-in, week-out in front of fans at a good standard of football.
"I think getting a good run in the team and starting to get some goals should be good.
"He (Warnock) said I'll play and then see what happens and hopefully we'll have a good season there."
The 19-year-old was wanted by several Championship clubs and he is expecting to play in a competitive division next season.
He added: "It's a good league. You see the teams coming up getting stronger and stronger and there are a few big teams in there like Newcastle and Middlesbrough, so it should be a good challenge.
"I think it will be a bit more physical. I don't think it will be faster as the Premier League is probably the fastest league. I'll just have to get stronger and see what happens."