Engine ID and VIN Derivative Location

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: 5.7L Engine Identification Numbers Component View LS1

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Engine ID Number, Primary Location
2	Engine ID Number, Secondary Location

The eighth digit of the vehicle identification number (VIN) is the engine code letter, which identifies the engine as a 5.7L V8 (VIN eighth digit: G) (RPO code LS1).

Stick-on labels attached to the engine, laser etching, or stampings in the engine block indicate the engine unit number/build date code.

The engine ID number will be located rear of LH cylinder head or the front part of LH oil pan rail.

Fig 2: 5.7L Engine VIN Derivative Locations Component View LS1

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	VIN Derivative, Primary Location
2	VIN Derivative, Secondary Location

The engine is also stamped with a VIN derivative number which will be located in either the primary or secondary location, as shown. For additional information, refer to VIN Derivative .