The 2008 GMC Yukon-Hybrid has overhead valves (OHV).
The 2008 GMC Acadia has double overhead cam (DOHC).
The 2008 GMC Canyon has double overhead cam (DOHC).
The 2008 GMC Savana has overhead valves (OHV).
The 2008 GMC Yukon has overhead valves (OHV).
The 2008 GMC Sierra-3500HD has overhead valves (OHV).
The 2008 GMC Sierra-2500HD has overhead valves (OHV).
The 2008 GMC Yukon-XL has overhead valves (OHV).
The 2008 GMC Sierra-1500 has overhead valves (OHV).
The 2008 GMC Savana-Cargo has overhead valves (OHV).
The 2013 GMC Acadia has double overhead cam (DOHC).
The 2010 GMC Acadia has double overhead cam (DOHC).
The 2007 GMC Acadia has double overhead cam (DOHC).