How many spark plugs are there in a hemi?
How many spark plugs are there in a Hemi V8? All modern Chrysler Hemi engines use two spark plugs per cylinder for a total of 16 spark plugs. This includes engines built in 2003 and later, ranging from the 5.7 liter to the 6.2 liter Hellcat engine. Using this ignition system allowed the engineers to move the plugs away from the center of the head, opening up more space for the valves.
Classic first and second generation Hemi engines built from 1951 to 1971, including the famous 427 Hemi, use one spark plug per cylinder, for a total of 8 plugs.