The black boxes on top of either side of the engine are the "coil over" plugs. Unplug the harness going to it, Remove two screws per coil over, and carefully pull straight out. Then you can access the plugs with a 5/8" spark plug socket and extension. On 5.7 and 6.1 engines there is 2 plugs per cylinder.
Just reverse process to install and hand tighten plugs then torque wrench to 11-15ft lbs.
The Dodge Hemi's have 2 spark plugs per cylinder which equals 16 spark plugs
6
Owners manual says every 30,000.
yes.
16, two per coil
They are under the coils, on top of the valve covers.
To change the spark plugs on a 2010 Dodge Charger, first ensure the engine is cool and disconnect the battery. Remove the engine cover if applicable, then carefully detach the ignition coils by unscrewing them and pulling them off the spark plugs. Use a spark plug socket and ratchet to unscrew and remove the old spark plugs, then install the new ones by hand to avoid cross-threading, tightening them to the manufacturer's specifications. Reattach the ignition coils and reconnect the battery, ensuring everything is secure before starting the engine.
100,000 miles.
The hemi has sixteen spark plugs.
look in the owners manual for that info.
You have to remove the intake plenum. It just unbolts.
The coil packs: only if something goes wrong, they are not a 'wear item,' and therefore have no anticipated change timeframe The spark plugs: yes.