The 2006 Chevrolet Express-Cargo has 12 valves.
The 2001 Chevrolet Express has 12 valves.
The 2013 Chevrolet Express has 16 valves.
The 2012 Chevrolet Express has 16 valves.
The 2004 Chevrolet Express has 12 valves.
The 2003 Chevrolet Express has 12 valves.
The 2005 Chevrolet Express has 12 valves.
The 2002 Chevrolet Express has 12 valves.
The 2007 Chevrolet Express has 16 valves.
The 2010 Chevrolet Express has 16 valves.
The 2011 Chevrolet Express has 16 valves.
The 2009 Chevrolet Express has 16 valves.