How to pronounce DOHC as in the Honda and Acura engines?

How to pronounce DOHC as in the Honda and Acura engines? - 1

Dual over head cam.

Dual overhead cams

DOUBLE over head camshaft

You say the words "Dual Overhead Cam"

Not the sharpest knife in the drawer, are you? It's an acronym, not a word which is "pronounced". Just like "FBI", "IRS", "CIA", etc., one simply reads the letters individually: "D-O-H-C". Alternately, one could state the entire phrase which the acronym stands for: "dual overhead camshafts" (note that it is "camshafts" (plural) and not "cam" or "cams".

Everybody uses the full form - dual overhead cams. It is just as easy as it is to say "D O H C."