C5 Engine Number...?

[V7TTE]

One or two conflicting opinions; Can anybody tell me where to read the engine number (not the VIN) on my C5?

[TEKWIZ]

This is from a 2001 Service Manual " All engines and transmissions are stamped or laser etched with a partial vehicle identification number,which is derived from the complete VIN. A VIN derivative can be used to determine if a vehicle contains the original engine or transmission, by matching the VIN derivative positions to their accompanying positions in the complete VIN".
The derivative is the last 9 digits of your VIN. This number is located on a pad behind the drivers side cylinder head.

Hope this helps

[V7TTE]

Cheers Dave - Thanks for the info.