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Engine Code Location

NOTE: For description of engine (RPO) code, see 2002 MODEL COVERAGE table.

LA1

On left side of engine block, above starter. See Fig 1.

Fig 1: Locating Engine Identification Number (LA1)
Courtesy of GENERAL MOTORS CORP.

LB7, LN2, L61 & L81

On rear left side of engine block, on engine-to-transmission mating flange. See Fig 2 or Fig 3 .
NOTE: Engine identification number location illustration for engine code L81 is not available from manufacturer.

Fig 2: Locating Engine Identification Number (LB7)
Courtesy of GENERAL MOTORS CORP.

Fig 3: Locating Engine Identification Number (LN2 & L61)
Courtesy of GENERAL MOTORS CORP.

L65

On rear left side of engine block, on engine-to-transmission mating flange, and on lower right front of engine. See Fig 4

Fig 4: Locating Engine Identification Number (L65)
Courtesy of GENERAL MOTORS CORP.

LE8 & LL8

On lower left front of engine block. See Fig 5 or Fig 6 .

Fig 5: Locating Engine Identification Number (LE8)
Courtesy of GENERAL MOTORS CORP.

Fig 6: Locating Engine Identification Number (LL8)
Courtesy of GENERAL MOTORS CORP.

L34

On rear left side of engine block. See Fig 7.

Fig 7: Locating Engine Identification Number (L34)
Courtesy of GENERAL MOTORS CORP.

LM7, LQ4, LQ9, LR4, LU3, L18, L30, L31, L35 & L59

On rear left side of engine block, below left-side cylinder head or below right-side cylinder head. See Fig 8.

Fig 8: Locating Engine Identification Number (LM7, LQ4, LQ9, LR4, LU3, L35 & L59)
Courtesy of GENERAL MOTORS CORP.

L18, L30 & L31

On rear left side of engine block, below cylinder head. See Fig 9 or Fig 10 .

Fig 9: Locating Engine Identification Number (L18)
Courtesy of GENERAL MOTORS CORP.

Fig 10: Locating Engine Identification Number (L30 & L31)
Courtesy of GENERAL MOTORS CORP.