The 2006 Chevrolet Colorado has double overhead cam (DOHC).
The 2006 Chevrolet Impala has overhead valves (OHV).
The 2006 Chevrolet Suburban has overhead valves (OHV).
The 2006 Chevrolet Malibu has overhead valves (OHV).
The 2006 Chevrolet Corvette has overhead valves (OHV).
The 2006 Chevrolet Equinox has overhead valves (OHV).
The 2006 Chevrolet Express has overhead valves (OHV).
The 2006 Chevrolet Tahoe has overhead valves (OHV).
The 2006 Chevrolet Silverado-2500HD has overhead valves (OHV).
The 2006 Chevrolet Silverado-1500 has overhead valves (OHV).
The 2009 Chevrolet Colorado has double overhead cam (DOHC).
The 2013 Chevrolet Traverse has double overhead cam (DOHC).