How to explain engine component and materials Piston -alluminium alloys, piston ring - cast iron+ high elastic material, crankshaft - Ally steel , flywheel - cast iron, Cam shaft - plain carbon steel, cylinder block - ductile cast iron and low carbon steel, Cylinder head - alluminium alloys, connecting Rod - low carbon steel, crank case -iron , alluminium and magnesium, Intake and Exhaust value - stainless steel, nickel, chromium, phosphorus, Bronze,more metal, bearing - aluminium alloy, copper alloy and chrome Steel,fuel injector - carburizing, maraging steel, intake and Exhaust Manifold - aluminium alloy, Gudgeon pin / Piston pin - plain carbon steel, Push Rod - steel, Rokar arm - medium carbon steel, timing chain - steel, timing belt - Sinthetick Rabar, Gasket - paper ,rubar, silicon, metal,cork neoprene nitrile rabber, fibreglass, plastic polymer Oil Pan - low carbon steel and aluminium alloy, muffler - cast iron, stainless steel, mild steel, carbon steel