I was the one that bought the engine Buzz posted about in the Racing Section a couple of days ago. As Buzz said in his thread, all markings have been ground from it and I would like to make sure I know what I have. My plan for the engine is to put it in a '57 T-bird and while I don't mind performance enhancements, I would like to make sure it is reliable and streetable.
Now for the questions-

 For the crank, it doesn't have the aspirin mark, has a EC marking, a 15/16" hole on the front counterweight, and the rods are EBU so from what I have read, all of this checks out as a 292. Is this correct?

It looks very clean and has what looks like aluminum pop up pistons. I think they are aluminum because they are non-magnetic. Does anyone recognize the pistons? I am trying to understand if I am going to end up with a high compression ratio  if I put this back together as is.

The heads are ECZ-G heads and it looks they have stainless exhaust valves and some mild porting, but the rockers needs a little clean up. 
Based on what can be seen from the limited pics and info so far, could this be a good match for my needs or should I consider a piston swap?
Here are a couple of pics and I can get more if it helps pin things down a bit.