Why Are 4 Valves Better Than 2? DOHC vs OHV

Why are 4 valves per cylinder better than 2 valves per cylinder? Is DOHC better than OHV? 4 valves per cylinder allows for more airflow than 2 valves per cylinder, as there is larger open area when the valves are open. Having a configuration with DOHC and four valves per cylinder means better airflow, especially at high engine speeds, resulting in better top end power. Though it is possible to run 4 valves per cylinder with a pushrod setup (OHV), it's far more common to run 2 valves due to the complica

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• #4_valve_vs_2_valve
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