The 2007 Volvo S80 has double overhead cam (DOHC).
The 2015 Volvo S80 has double overhead cam (DOHC).
The 2001 Volvo S80 has double overhead cam (DOHC).
The 2013 Volvo S80 has double overhead cam (DOHC).
The 2012 Volvo S80 has double overhead cam (DOHC).
The 2008 Volvo S80 has double overhead cam (DOHC).
The 2010 Volvo S80 has double overhead cam (DOHC).
The 2006 Volvo S80 has double overhead cam (DOHC).
The 2014 Volvo S80 has double overhead cam (DOHC).
The 2004 Volvo S80 has double overhead cam (DOHC).
The 2011 Volvo S80 has double overhead cam (DOHC).
The 2003 Volvo S80 has double overhead cam (DOHC).