The 2013 GMC Terrain has 16 valves.
The 2010 GMC Terrain has 16 valves.
The 2012 GMC Terrain has 16 valves.
The 2011 GMC Terrain has 16 valves.
The 2014 GMC Terrain has 16 valves.
The 2013 GMC Yukon has 16 valves.
The 2013 GMC Acadia has 24 valves.
The 2013 GMC Savana has 16 valves.
The 2013 GMC Sierra-3500HD has 16 valves.
The 2013 GMC Yukon-Hybrid has 16 valves.
The 2013 GMC Yukon-XL has 16 valves.
The 2013 GMC Savana-Cargo has 12 valves.
The 2013 GMC Sierra-1500 has 12 valves.