DOHC vs SOHC engines - all you need to know! - PakWheels Blog
DOHC vs SOHC vs OHV - Which Is Best? - YouTube
Double Overhead Cam (DOHC) timing explained
Automotive Courses - * OHV - SOHC / OHC - DOHC Definition of types of motors and their differences and the advantages and disadvantages of each First: OHV engines OHV = Overhead