Black plate (3,1)
Chevrolet Impala Owner Manual - 2011
Technical Data 12-3
Engine Specifications
Engine VIN Code Transmission Spark Plug Gap
3.5L FlexFuel V6 K Automatic 1.01 mm (0.040 in)
3.9L FlexFuel V6 M Automatic 1.01 mm (0.040 in)
Engine Drive Belt Routing
3.5L V6 and 3.9L V6 Engines