Technical data 12-5 – GMC 2012 Sierra User Manual
Page 513
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GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Technical Data
12-5
Engine Specifications
Engine
VIN Code
Spark Plug Gap
4.3L V6 (LU3)
X
1.52 mm (0.060 in)
4.8L V8 (L20)
A
1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active Fuel Management™ (Iron
Block) (LMG)
0
1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active Fuel Management™(Aluminum
Block) (LC9)
7
1.02 mm (0.040 in)
6.0L V8 FlexFuel with Active Fuel Management™(Aluminum
Block)(LZ1)
J
1.02 mm (0.040 in)
6.0L V8 (Iron Block) (L96)
G
1.02 mm (0.040 in)
6.2L V8 FlexFuel (Aluminum Block) (L9H)
2
1.02 mm (0.040 in)
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