It should be noted that this information pertains to Chevelles & El Caminos only. Other Chevrolet lines and their plants may differ. For example, a 1969 full size car with a 350 V8 from Van Nuys has been reported with the partial VIN on the oil filter boss and other Chevrolet models and/or plants may exhibit the same properties.
Sample of Baltimore stamping on engine pad.
Ongoing research indicates that the Atlanta & Kansas City plants
used this alternate location for 396 engines.