"ML" Engine Stamp..

[68Zproject]

I somewhat agree with you Mike, but the problem is with the glass and all those other "dated" parts is they don't change what the car was from the factory and most of them were maintenance items.  Most of the engine stamping is to make a car something it's not.  A 68 could be a z28 but without the original engine or trans there is no absolute way to prove it.  If you have a vin stamped MO 302, it's pretty good proof of what that car is.