GM Chevrolet Avalanche - Manual (Page 449)

Engine Specifications
Engine VIN Code Transmission Spark Plug Gap
VORTEC™ 5300 V8 T Automatic 0.040 inches (1.01 mm)
VORTEC™ 5300 V8 Z Automatic 0.040 inches (1.01 mm)
VORTEC™ 8100 V8 G Automatic 0.060 inches (1.52 mm)
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