An engine configuration featuring two camshafts operating the valves within the cylinder head of a vehicle manufactured by Toyota. This design facilitates improved control over valve timing and lift compared to single overhead camshaft (SOHC) designs, allowing for enhanced engine performance and efficiency. A common application is found in various models, contributing to their power output and responsiveness.
This configuration offers advantages in terms of combustion efficiency, leading to increased horsepower and torque, particularly at higher engine speeds. Historically, the implementation of this technology represented a significant advancement in automotive engineering, contributing to the evolution of high-performance engines. It has played a role in establishing the reputation of certain models for their reliability and performance capabilities.