Could this be a COPO ????

[HiHorse]

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The car has a repro tag and a non-OE DZ motor; date way off. However the body number on the repro tag is in sequence with two other known Glockner Chev COPOs. It is possible this car [and others...] was purchased as a rolling shell with no engine/trans in the early '80s before much was known about COPOs. Since it had discs and a 12 bolt it was done up as a Z/28; the X11 or X44 tag went away. Other COPOs may have been restored as 396 Super Sports.

I will not reveal the VIN of the car in question. Hope the OE tag was retained.

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Were body tags being reproduced in the early eighties?