Engine Identification: Notes

Fig 1: Identifying Engine Block

Courtesy of GENERAL MOTORS CORP.

The Vehicle Identification Number (VIN) Derivative is located on the right front side of the engine block (1) and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant. If reading the identification number the following information can be obtained:

• The first digit identifies the vehicle division.
• The second digit is the model year.
• The third digit identifies the assembly plant.
• The fourth through ninth digits are the last six digits of the Vehicle Identification Number (VIN).