engine swap on 1999 F150 XL
 

I have a '99 4.2L F150 and a '99 4.6 Lincoln Town Car. I'm curious if anyone knows whether or not it would be possible for me to swap out the eng and trans on them. I'd love to get a bit more power out of my F150 and I'd be dropping almost 100k miles. If it will fit will it be an easy swap over or alot of fab work?