Verne,

I actually spoke to Jim Mattison regarding "pilot cars," and he relayed that most "pilot cars," were actually built at the Flint Plant irregardless of what the car says. Chevrolet had a special area in the Flint Plant for that purpose. The LS6 was an exception though because it was basically a "SS396" with a larger engine. These cars were built at the respective plants, with the cars being used for media evaluation, engineering, auto shows, etc. They (the LS6 "pilot cars," which he said I have) had hand assembled engines and rears, and were monitored for quality and assembly procedure. He thought about 10-12 cars would have been assembled, and most would have been scrapped. I think therefore it is possible to have other LS6 "pilot cars," from plants other than Baltimore..Along with "standard" 1970 Chevelle "pilot cars." I would suspect that the same can be said for any of the major mid year introductions..1967 L78 Camaros, COPO's, etc. He sent a nice letter discussing the LS6 and "pilot cars" in general. I'll try sending it over if you like. Thanks for your input..I'll try you on Monday.