Chevy has some records they just dont want to get involved like Pontiac did, for about $25 or so you can get a build sheet for your Pontiac from Pontiac Historical Services, I remember seeing a ton of 64-65 tri-power GTOs pop up in Hemmings a few months after this service started ( possibly from owners of conveted 64-65 Tempests/LeMans cars. The later - 66 and up GTOs have their own unique VIN number so they cant be faked ). I would love to see this happen to the many suspect 1st generation Z/28s I have seen in my life ( some owned by some very famous sports personalities ). I know that there are records at Chevrolet because people like Al Colvin and Paul Riesner have been let into the back rooms and researched the dusty neglected file cabinents that are there. I have a good friend who is the most talented Corvette mechanic that I have ever met ( being an ex GM quality engineer probably helps ). My talented friend constantly gets calls about cars for sale, and one day fond himself looking at a used 68 Corvette coupe with an L88 replacement engine in it. Paul Riesner was able to confirm that the car was a legit 68 L88 sold at Cochran and Celli Chevrolet in Oakland, CA and after the tank sticker was found to say L36 ( 427 390HP ) he said no way! that the VIN was for a L88 car! Paul had a friend of his drop by my friends shop and recheck the tag, it was then discovered that the build sheet was for another car approximately 10 numbers off of the VIN# for this 68 Vette. The sales manager for the dealership in 1968 was located and he absolutley remebered the car and the person that bought it new in 1968. The Vette was stolen approximately 6 months after purchase and there was a shouting match between the service manager and the insurance claims adjuster when the bill for the correct replacement motor was over $3000 in 1969. The 1st owner was contacted and verified that the car was his old car! The car was exstensivley modified by him for the car show circiut in the early 70s and still had all the modifications ( I think my favorite one was the 4 exhaust pipes comming out of the fenders where the shark gills should be located ). The 68 L88 can be seen in the movie " Hells Angels 69 " at the beginning of the film there is a flared silver corvette with the L88 hood, this is in a time before people were really aware of the L88 option. Paul Riesner has access to GM records that you and I dont and that is a shame! I think Chevy believes that the service would be more trouble than its worth but that just screws you and me. The records are obviously there: we know the VIN number for every 69 ZL-1 Camaro that was made, where did these come from?