The 2011 Ford Expedition has single overhead cam (SOHC).
The 2004 Ford Expedition has single overhead cam (SOHC).
The 2008 Ford Expedition has single overhead cam (SOHC).
The 2014 Ford Expedition has single overhead cam (SOHC).
The 2012 Ford Expedition has single overhead cam (SOHC).
The 2009 Ford Expedition has single overhead cam (SOHC).
The 2005 Ford Expedition has single overhead cam (SOHC).
The 2010 Ford Expedition has single overhead cam (SOHC).
The 2002 Ford Expedition has single overhead cam (SOHC).
The 2003 Ford Expedition has single overhead cam (SOHC).
The 2007 Ford Expedition has single overhead cam (SOHC).
The 2006 Ford Expedition has single overhead cam (SOHC).