I'm a little surprised -
I helped buy this block for a friend nearly 20 years ago. It's not a match to my '68 Z, but very close in date. I built the long block myself, plus sourced every part going into it.
Block was standard bore when I bought it, deck had never been touched up or resurfaced in any way prior to going to the machine shop. Block was bored .030, fitted with 1st design factory TRW ('67 thin rings)pistons purchased from the same guy, who also included the manifold and original distributor. .010/.010 original 1178 crank, pink pressed rods. If you're concerned with the pad surface around the stamp, it looks like it was scraped - no milling feed lines on the rest of the surface. Surface is completely flat, no signs of tampering or filling. My thought has always been not to try and pass this off as my original; it's someone else's block, but it's an MO, rebuilt with GM original parts.
I asked if this car's VIN was in the database sometime back - the response was negative. If the car should show up, I would gladly entertain a transfer to the owner (otherwise it will power my '68 for the rest of my life/ownership).
http://www.camaros.org/forum/index.php?topic=12082.msg99143#msg99143Regards -