This cylinder head apply on DOHC(Double Over Head Camshaft) type, which have two camshafts rotating by combustion force and make combustion in the combustion chamber with operating(open&close) 4 valves by camshaft rotating. The bottom part of Cylinder head could get the cover shape (which is called as combustion chamber) with Cylinder Block and Piston. Therefore, The material of Cylinder head, which make combustion chamber, is applied on Aluminum alloy that have the good charateristics of cooling effect and stiiffness for protecting it from high temperature and combustion pressure.

As the internal part, Cylinder head have water.

The crankshaft is made of cast iron which has a appropriate strength. 5 main journals are supported by cylinder block, bearing cap and main bearings with a suitable oil clearance. The 3rd main bearing makes a axial clearance of crankshaft as a thrust bearing. The connecting rod is assembled at 4 pin journals each with metal bearings to change the movement from reciprocating to rotating. On the front side, there are damper pulley for belt drive and a timing sprocket for chain drive. On the rear side, there is a flywheel or a flexible plate to transport the engine torque to transmission.

The crankshaft sprocket assembled the crankshaft drives the camshaft sprocket using by the timing chain. Also, the tensioner of hydraulic type assist the chain tension and the lever and the guide support the timing chain.

The oil pump supplies engine oil from the oil pan and feeds it to the various parts of the engine under pressure.

An oil strainer is mounted before the inlet of the oil pump to remove impurities such as clog or damage the oil pump or other engine components. When the crankshaft rotates, the oil pump driven gear rotates. It makes the space between inner rotor and outer rotor to constantly open and narrow enough to pull the oil into the main gallery of block from the oil pan.

At high engine speeds, the oil pump supplies a much higher amount of oil than required for lubrication pressure of the engine. And then, relief valve prevents amount of oil entering the engine lubrication passages.

During normal oil supply, relief valve is closed by the coil spring tension, so all of the oil is delivered to the engine parts. On the other hands, if the oil flow rate is increased, the oiil pressure becomes high enough to overcome and open the force of the spring. With the consequence that, oil is returned to oil pump inlet.

The engine oil pan is mounted to the bottom of the cylinder block. The engine oil pan houses the crankcase and is made of pressed sheet metal.

Engine oil is pumped from the oil pan by the oil pump. After it passes through the oil filter, it is fed through two paths to lubricate the cylinder block and cylinder head. In one path, the oil is pumped through oil passages in the crankshaft to the connecting rods, then to the pistons and cylinders. It then drains back to the oil pan. In the second path, the oil is pumped through passages to the camshaft. The oil passes through the internal passageways in the camshafts to lubricate the valve assemblies before draining back to the oil pan.

The exhaust manifold is located to the cylinder head and send the Catalytic Converter the exhaust gas out of the combustion chamber. It is designed to endure on high pressure and high temperature and made of HiSiMo material.

The intake manifold is air flow passage to the cylinder combustion chamber through the throttle body and has an effect on engine torque, power, noise, dirvavility, emission, fuen economy and performance. It is made of poly amid for weight reduction.

This valve train system is applied on Direct acting type. By Cranktrain rotation, intake/exhaust camshaft can be drived and this operation occur the each opening/closing of 2 intaker valve/2 exhaust valve. This total operation bring out the combustion of cylinder space.

Due to systemical characteristics (Direct acting type), tappet can be directly contacted with the cam-profile of camshaft and the each different gap between intake valve and exhaust valve with tappet must be maintained. and this valve train system is composed of valve spring, valve stem seal, valve spring retainer and valve key.

The pistons are cast aluminum with a slant type bowl design. They have 2 compression rings and 1 oil ring assembled the spring. There is a piston pin of full floating type between piston pin bore and connecting rod pin bore, and it is fixed by retainers at both ends.

The connecting rod and rod cap are seperated and assembled at crankshaft with bearings.