Upgrading processor from sandy bridge to ivy bridge

Hi. I have a 2011 21.5" iMac with a 2.7 Ghz Core i5 processor. After doing some research, I learned that Intel's new Ivy Bridge chips also use the same 1155 socket as the Sandy Bridge chips. I was wondering if anyone out there knows if I would be able to upgrade the processor to the i7 3770 (or i7 3770k). I consider myself pretty tech savvy and have already replaced my optical drive with a Blu Ray Drive, and added an SSD to my iMac, so I am confident in my abilities to replace the processor. I just would like to make sure it would work before I go through the trouble of upgrading it.

Any info on this would be greatly appreciated.

 

Check iFixit.com if it's soldered or not.

Here we go:

"Replacing the CPU and GPU is possible to do, but you need to remove the logic board from the computer."

http://www.ifixit.com/Teardown/iMac-Intel-21-5-Inch-EMC-2428-Teardown/5485/2

But I think you may run into issues with the drivers for Ivy Bridge CPUs. You can probably google more info on this since people are running hackintoshes with Ivy Bridge already.