http://cgi.ebay.com/ebaymotors/ws/eB...category=33615
Here is what the seller said
GM only made 200 and they were only available to select dealers, each one
has a serial number machined into the valve cover, it is also has an
aluminum block. These engines were snatched up fast by collectors and their
are very few available, I only know of three. This is priced about $250
less then going rate. I sell allot of the lower priced crate engines, like
the ZZ4, this a one time offer and is for someone who has gone all out on
their vehicle, having a limited edition engine can add the overall appeal.
Are you interested please feel free to ask me more questions