Information provided here is provided solely to aid a potential owner in determining the heritage of their Heavy Chevy Chevelle. An example 'suspect' car would be a Heavy Chevy Chevelle with proper paperwork but the history of the car shows it was a 'barn find' and the engine was long gone when the car was found. However, suddenly the car appears on the market with a restamped engine and is being sold as a 'matching numbers' car. The term 'matching numbers' means different things to different people but here it's used to mean the engine build date stamping and the partial VIN stamping on the block are original and have not been altered. A 'barn find' Heavy Chevy with a missing engine has a 1-in-xxxx chance of finding its original block. You be the judge.
As cars of this type are found, they'll be listed here in plant order and by sequence number.