Just this week I picked up another core Y Block. A fella about an hour away from me had a "1956 292" for sale, and from the pictures he posted I could tell it did not have the early heads (no core plug on the end), had a B intake sitting on top with a matching 57+ distributor, and a few other odds and ends bolted to the block. When I showed up to take a look at the core, he had a set of Mercury script valve covers, three Holley 94 carburetors, an extra starter, and some other odds and ends in a box. Examining the block I found it was a C2AE with a set of EZC-C heads on top. The deal was so good I did not even dicker. Just goes to show you that if you can take the time to investigate, you might find a little more treasure than you what you originally thought was available. Concerning the deal, I have already swapped enough of the extra parts to break even on the core.
In a swap over Christmas break in North Carolina I found a set of ECZ-G heads for pennies on the dollar. They are already at the shop with a game plan to get them prepped for better performance.
I love finding core Y Blocks. This is another one I hope to build some day - just glad it was saved from being thrown out. Anyone else as addicted as I am ?
Daniel JessupLancaster, California
aka "The Hot Rod Reverend" 
check out the 1955 Ford Fairlane build at www.hotrodreverend.com