1968 440 block with a blank VIN pad ??

[Kern Dog]

Last week I dragged home a 67 Chrysler 300. I thought it had its original engine but the 4-4-68 casting date told me that it was a replacement engine. Now I started looking at the ID numbers and have found that while there is a machined flat spot on the RH side of the block near the oil pan rail, there is no number stamped there.
The raised pad near the distributor reads D440 6 21 HP with a sideways B inline with the LH side of the block.
Maybe a warrantee replacement? What does this do for the value as compared to another block with an actual VIN stamp?

[Kern Dog]

I scraped a bit more and found a number right where it was suggested to be. I'm more familiar with 1970 and later engines so it was news to me that a 1968 engine would be stamped in such a strange area.
My numbers came up 8A333528 .

[6bblgt]

Would've been a Coronet R/T: VIN WS23L8A333528  now go find it, but odds are it's long dead & gone for the engine to end up in a Chrysler 300 that's about dead & gone

[Kern Dog]

Yeah... good point.