Cadillac 2006 STS - Manual (Page 429)

Engine Specifications
Engine VIN Code Transmission Spark Plug Gap
3.6L HFV6 7 Automatic 0.044 inches (1.1 mm)
4.4L DOHC V8 (V-Series) D Automatic 0.040 inches (1.0 mm)
4.6L DOHC V8 A Automatic 0.040 inches (1.0 mm)
STS-V Engine Data
Engine Horsepower Torque Displacement Compression Ratio
4.4L V8 (LC3)
440 hp (328 kW) @
6400 rpm
430 lb ft (583 Nm) @
3600 rpm
4.4L 9.0:1
5-117