If in fact this was a true DZ block originally (note: I've heard the term 'DZ' widely misused by many to describe blocks for Z 2/8's from all years - but for me means '69 only) maybe it isn't a total loss if this is a block from the timeframe when the vin portion of the stamping was done down by the oil filter boss and not the deck itself.
I don't pretend to be an expert but was of the opinion that there is a somewhat documented timeframe when this change took place and maybe the OP's car falls into that area where all he lost to the decking would be stamp for date, plant, and engine code designation (enough mind you) but the real proof of originality to the car still exists elsewhere on the block with the matching vin # and in the correct GM font used originally... Or am I off base here?
Maybe I didn't read the original post and replies close enough - but I would venture that in the case where only the assembly plant/date/usage code are now gone, a good restamp of that info alone or better yet not redoing it at all, might end up being a lot less suspect than having had it all machined off.
It is also my own opinion that in a scenario as described above, proper and timely diclosure to any interested parties (judging or for sale purposes) might limit a lot of the 'stigma' that would normally be associated with something like this...
Just my opinion - so flame away if you will... - Randy
