Why not?
If you can find a type-s k20a2 swap for around $4000 and spent another $2000 on a k20a EG swap kit... go for it...
Yes, it is not as easy as a gsr swap in a civic but it has been done a few times...
Check out
www.k20a.org for information
Here are some pics and a video
Check out the movie at
www.k20a.org/dynorun.wmv
Here are a more K20A civics