DOHC vs SOHC vs OHV - Which Is Best?

How do camshafts and valves work? The differences between DOHC, SOHC, and OHV or pushrod valve trains is explained. How the valves are related to each, and how each works. I will also speak of advantages of each of the valve trains. Dual overhead cams (DOHC), singles overhead cams (SOHC), and overhead valves (OHV).

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