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Black plate (5,1)
Chevrolet Silverado 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)