Here is a list of systems you should be able to swap parts around: MacBookPro8,2.
Here is what your system's CPU offers from EveryMac web site:
- This model is powered by a "Quad-Core" 32 nm, 64-bit Intel Mobile Core i7 "Sandy Bridge" (I7-2635QM) processor.
Here's the specs on the CPU on the this system: MacBook Pro 15" 2.4 GHz i7 (Late 2011) again from EveryMac web site:
- This model is powered by a "Quad-Core" 32 nm, 64-bit Intel Mobile Core i7 "Sandy Bridge" (I7-2760QM) processor.
I don't see any reason why it wouldn't work. Just remember the clock rate while faster is not as big a jump to offer much change in performance. So don't make the point four (.4) be the deciding factor if you can get a 2.0 GHz board for less.