Any 3932388 DZ Engine Pads close to V0425DZ?

[69Z28-RS]

There have been several examples I can think of where a legit-looking DZ stamp has been found on a block without the oil gallery pipe plug. But as pictured, the 'V' prefix to a genuine stamp means it was machined and assembled at Flint, not Tonawanda.

Yes, IF one always believes the stamping...

But.. In the 'Corvette World' there are people who can supposedly 'replicate' the factory broach marks, and perfectly restamp an engine using the factory gang holders and stamps; I haven't seen these but that's what I'm told.   (So I am from MISSOURI when it comes to engine stamps for more desirable cars!)..

[jdv69z]

So you guys are saying that there are (you've seen?) legitimate documented Z28 engines cast in Tonawanda (although machined/assembled in Flint of course)...?   Other than for 'test' purposes, or a problem at one of the foundries, it's difficult for me to believe that raw castings were routinely (or even rarely) passed between the foundries...?   I'd love to see/hear some proof of that happening if it did... and I will modify my view.

I'm know I'm old, etc. and my memory is suspect. For some reason, I think I remember reading something about Tonawanda shipping blocks to Flint at one point for reasons I cannot recall. Production problems maybe, or ? Maybe I dreamed that. 

[KurtS]

Blocks were generally not swapped between the plants. But there is a known shortage when 388 blocks were sent to Flint.
It's a real block.

[JohnZ]

We discussed this block-exchange program here several years ago - it was done occasionally to ensure that neither plant had made any machining changes that would compromise the Service requirement that either Flint or Tonawanda blocks were interchangeable and would accept the same common replacement parts in the field. It's theoretically possible (but HIGHLY unlikely) that one of those Tonawanda-supplied interchangeability audit blocks could wind up built as a DZ engine, including drilling/tapping for and installing the 1/8" NPT oil gallery plug above the timing cover.

I'd need a whole bunch more evidence before I'd believe that Flint V-8 built a DZ engine, without the oil gallery plug, on a Tonawanda block; too many ways to fake just about anything.

[ZLP955]

Here's another example of a 388 block used for a genuine DZ: http://www.camaros.org/forum/index.php?topic=15638