1969 Z/28 block casting numbers

[x77-69z28]

my 05A car is the 010 block,

[pdgarland]

I have a 010 CE block, dated 11 69, with series # after it, and on the bottom, by the oil filter location, a date of K0215 . It had a # written on the side of the block in crayon of #3970647. A guy at the dealership told me it was replacement ' 69 Z fitted block, and that 397# was a service replacement # , ordered through the parts department. Sounds like someone turned a bearing, or worse, and had it replaced under warranty.   

Looks like CE 9 5XXXX. It is a bare block though, no crank/rods or pistons, and no VIN. And NO, I don't want to sell it.   

[pdgarland]

Ok, it has a code of T0218, it was a 8 instead of a 5, and has a K under it, all by the starter flange . So, it has a Tonawanda  CE code and date, but a  McKinnon foundry cast block, and K by the date also. Anyone seen anything like this? Did Tonawanda have a strike, and they use McKinnon cast blocks for warranty? Just curious. Never seen one like this... ever! It is a 4 bolt bare block.   
CE 9 52xxx  on top pad

T0218   by starter
K

[JohnZ]

A "CE" replacement fitted block (block and pistons, no crank or rods) for a 302 wouldn't have come from Tonawanda; they didn't have the domed pistons in stock. Only Flint V-8 had domed pistons, solid-lifter cams, the 1178 crank, and the 2.02/1.60 big-valve head machining station with the intake valve unshrouding cutter in the cylinder head machining line. Tonawanda only built hydraulic-lifter 350's with flat-top pistons and 1.94/1.50 valves.

[x77-69z28]

my 05A z has the 010 block, i havent found anyone with an earlier vin with it.