CHEVROLET 2012 Express - Manual (Page 386)

Black plate (4,1) Chevrolet Express Owner Manual - 2012
12-4 Technical Data
Engine Specifications
Engine VIN Code Transmission Spark Plug Gap
4.3L V6 X Automatic 1.52 mm (0.060 in)
4.8L V8 A Automatic 1.02 mm (0.040 in)
5.3L V8 4 Automatic 1.02 mm (0.040 in)
6.0L V8 G Automatic 1.02 mm (0.040 in)