I hope someone can help me here. Unfortunately I don't know what section to post this in, so I figured the Newbies' category would work fine.

Here's my problem. I found, on craigslist, a 1999 Impreza and the "motor appears to have blown." This is vague, but I'm planning for worst case scenario.

Full listing here.

I found a totaled 1996 Impreza with what appears to be a working engine. I don't know the size (hopefully the 2.2L to match the 1999) but I'm wondering if these engines are interchangeable. What I mean is, am I able to basically bolt the 1996 engine into the 1999?

Any help is welcome, and I apologize for the lack of detail.