The difference between SOHC engine and DOHC engine

DOHC is a double overhead camshaft engine, and SOHC is a single overhead camshaft engine. The intake and exhaust effect of DOHC is better than that of SOHC, the combustion effect is better, and the engine power is relatively high; However, the engine structure is relatively complex and the cost is high. In short, DOHC is more advanced than SOHC, but the price is high!