The engine - how the valves open and close | How a Car Works
What is the difference between OHV, OHC, SOHC and DOHC engines?
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
Double Overhead Cam (DOHC) timing explained
What is the difference between OHV, OHC, SOHC and DOHC engines?