The efficiency of gas flow determines the intake and exhaust efficiency of Hyundai Kia Engine. The design of the cylinder head assembly affects the smoothness of airflow, which in turn affects the exhaust efficiency of gas. If the valve arrangement of the cylinder head assembly is unreasonable, or the airway design is unscientific, the airflow will be hindered, causing the Bare Engine to be out of breath. This is like adding a narrow bend in a water pipe, the water flow will be restricted and cannot reach the optimal flow.

The cylinder head assembly is also closely related to the thermal management system of Hyundai kia engine. Hyundai Kia Engine generate a lot of heat when working. If the cylinder head assembly cannot effectively dissipate heat, the Bare Engine may be damaged due to overheating. In this case, the power of the Bare Engine will decrease and the performance will be affected. Therefore, an excellent cylinder head assembly needs to consider not only the design of airflow, but also the heat dissipation performance.

The material selection of the cylinder head assembly is also crucial. Modern cars often use aluminum alloy materials, which are relatively light but very strong, which can effectively reduce the overall weight while maintaining good high temperature resistance. This is like in a racing car, reducing the weight of the car can make it accelerate faster. If inferior materials are used, the durability and performance of the cylinder head assembly will be affected, ultimately resulting in the Bare Engine's power failing to meet expectations.