The 2004 Volvo XC70 has 20 valves.
The 2003 Volvo XC70 has 20 valves.
The 2005 Volvo XC70 has 20 valves.
The 2012 Volvo XC70 has 24 valves.
The 2009 Volvo XC70 has 24 valves.
The 2013 Volvo XC70 has 24 valves.
The 2010 Volvo XC70 has 24 valves.
The 2014 Volvo XC70 has 24 valves.
The 2011 Volvo XC70 has 24 valves.
The 2008 Volvo XC70 has 24 valves.
The 2007 Volvo XC70 has 20 valves.
The 2006 Volvo XC70 has 20 valves.