Cylinder Heads

Protecting Your Engine with Quality Cylinder Heads

Why shell out big bucks for parts you're not sure will fit? Cylinder heads form the upper portion of your engine's combustion chambers and control critical functions like air intake, fuel delivery, and exhaust gas removal. These components house the valves, springs, and rocker arms that open and close thousands of times each minute during normal driving. When cylinder heads develop problems, your engine loses compression, burns oil, or overheats quickly. Vehicles like the Nissan Altima and Pathfinder rely on properly functioning cylinder heads to maintain their performance standards.

Understanding Cylinder Head Function

Cylinder heads seal the top of each cylinder where combustion occurs. They contain intake and exhaust ports that channel air and fuel into the engine while directing spent gases out through the exhaust system. The valves within the cylinder head open and close at precise intervals to control this flow. Coolant passages running through the head prevent excessive heat buildup during operation. The entire assembly bolts tightly to the engine block, creating a sealed environment where controlled explosions generate power.

What Causes Cylinder Head Damage

Overheating represents the most common cause of cylinder head failure. When coolant levels drop or the cooling system malfunctions, excessive heat warps the metal surface. This warping destroys the seal between the head and engine block, allowing coolant to leak into the combustion chamber or oil passages. Worn timing belts can cause valves to strike pistons, cracking or breaking the cylinder head casting. Normal wear over many years weakens the metal through repeated heating and cooling cycles.

Knowing When Replacement Is Required

White smoke from the exhaust indicates coolant burning in the combustion chambers. Milky residue on the oil dipstick or in the radiator suggests head gasket failure or a cracked head. Loss of power, rough idling, and engine misfires often accompany cylinder head problems. Aftermarket cylinder heads may appear cheaper initially, but they frequently lack the precise engineering of genuine Nissan components. We stock factory-engineered cylinder heads that match your engine's exact specifications for reliable, long-term performance.

We stock all the parts you need for your car repair, and can ship them to your garage fast.