2.7 questions

[RacingTowardsRed]

So I've done a bit of searching but havent quite found the answers I've been looking for. I've got a 90 325is and I'd like a bit more power. I'm thinking of swapping the I head onto an E block. My questions are:

Since the motor I found is not a S-ETA motor (I dont think) I'm under the impression that I need to get new pistons, if so, can someone point me in the right direction as to what pistons I need?

What kind of difference can I expect to feel after the swap, and will it change my redline?

What else should I look at/replace while I've got the two motors out? (I'm new at engine internals, I'll be learning as I go)

Anything I should do to the I head while its off the car?

Lastly, is this the right block I need (I feel like a newb for having to ask that)? http://seattle.craigslist.org/skc/pts/1384310779.html

Thanks folks!!

P.S. - I dont know if its worth mentioning but the car will not be turbo.

[DSP74]

I have read various forum threads for hours over the past few weeks on the subject of strokers. There is a BUNCH of stuff covering 2.7's

If you search you will find what you are after.