Engine Identification

Fig 1: Locating Engine ID Tag

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine ID Location
2	Engine ID Location
3	The first digit identifies the engine build location - All first digits will be a T, this engine is only being built at Tonawanda
4	The second and third digits identifies the build year
5	The fourth, fifth and sixth digits identify the build month - Julian Date
6	The seventh through tenth digits identify the engine build sequence