Black plate (5,1)
GMC Sierra Owner Manual - 2011
Technical Data
12-5
Engine Specifications
Engine
VIN Code
Transmission
Spark Plug Gap
4.3L V6 (LU3)
X
Automatic
1.52 mm (0.060 in)
4.8L V8 (L20)
A
Automatic
1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active
Fuel Management
™
(Iron
Block) (LMG)
0
Automatic
1.02 mm (0.040 in)
5.3L V8 FlexFuel with Active
Fuel Management
™
(Aluminum
Block) (LC9)
3
Automatic
1.02 mm (0.040 in)
6.0L V8 (Iron Block)
B
Automatic
1.02 mm (0.040 in)
6.0L V8 (Iron Block) (L96)
G
Automatic
1.02 mm (0.040 in)
6.2L V8 FlexFuel (Aluminum
Block) (L9H)
2
Automatic
1.02 mm (0.040 in)