iT HAS 1 COIL PER CYLINDER, tHAT'S WHAT YOU SEE MOUNTED ON THE TOP OF THE VALVE COVERS AND HAS A SPARK PLUG WIRE GOING TO THE PLUG/PLUGS.
6 cylinder has 6 and the 8 cylinder has 8
The 2000 Blazer with the 4.3 engine has one coil.
The 2005 Chevrolet Tahoe has 16 valves.
The 2013 Chevrolet Tahoe has 16 valves.
The 2008 Chevrolet Tahoe has 16 valves.
The 2006 Chevrolet Tahoe has 16 valves.
The 2004 Chevrolet Tahoe has 16 valves.
The 2014 Chevrolet Tahoe has 16 valves.
The 2009 Chevrolet Tahoe has 16 valves.
The 2001 Chevrolet Tahoe has 16 valves.
The 2011 Chevrolet Tahoe has 16 valves.
The 2007 Chevrolet Tahoe has 16 valves.
The 2002 Chevrolet Tahoe has 16 valves.