4F20 Cylinder Head Assembly, Engine Cylinder Head Complete Unit

4F20 Cylinder Head Assembly is a core component of engine, packed in wooden case. It is installed on the upper part of engine cylinder, integrating air passages and valve‑seat structures. It cooperates with pistons to complete gas distribution and combustion process. It matches 4F20 engine perfectly. Suitable for new engine assembling and aftermarket replacement for worn, deformed, cracked or gasket‑blown original cylinder head, restoring engine performance.