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The 2006 GMC Sierra-1500 has 12 valves.
The 2006 GMC Sierra-2500HD has 16 valves.
The 2006 GMC Sierra-2500HD has a V8 engine.
The 2006 GMC Sierra-2500HD has a 5-speed manual.
The 2006 GMC Sierra-2500HD is a gas-powered vehicle.
The 2006 GMC Sierra-1500 is a gas-powered vehicle.
The 2006 GMC Sierra-2500HD has overhead valves (OHV).
The 2006 GMC Sierra-1500 has a 5-speed manual.
The 2006 GMC Sierra-1500 has overhead valves (OHV).
The 2006 GMC Sierra-2500HD's turning circle is 43.8 ft..
The height of the 2006 GMC Sierra-2500HD is 6 ft. 4.2 in. (76.2 in.).
The 2006 GMC Sierra-1500 runs on regular unleaded.