Cylinder Heads

Replace Damaged Cylinder Heads

Whether you're enhancing a performance vehicle or maintaining a family car, Garden Grove Nissan has all the parts you need. Cylinder heads are the cast metal components that seal the top of engine cylinders and house valves, springs, and camshafts. These parts create the combustion chamber and manage airflow into and exhaust gases out of cylinders. Properly functioning cylinder heads maintain compression and prevent coolant or oil leaks. We stock genuine Nissan cylinder heads manufactured to exact specifications for your engine design.

How Cylinder Heads Function in Your Engine

Cylinder heads bolt to the engine block and seal cylinders with head gaskets. The combustion chamber shape in the head determines compression ratio and flame propagation. Intake and exhaust valves in the head control gas flow timing coordinated by camshafts. Coolant passages cast into the head regulate temperature during combustion. Your Versa and Leaf both use cylinder heads designed for their specific engine configurations and performance requirements. These components work with engine blocks and gaskets to create sealed combustion chambers. Genuine Nissan cylinder heads use precise casting and machining that maintains proper valve seat angles and port flow.

Why Cylinder Heads Crack or Warp

Cylinder heads crack from severe overheating when coolant loss or thermostat failure prevents proper cooling. Thermal stress from repeated heat cycles can warp the sealing surface. Impact damage from broken timing components can bend valves and damage head castings. Corrosion from coolant contamination weakens internal passages. Aftermarket cylinder heads often use cheaper aluminum alloys that crack more easily under stress. Generic heads may have incorrect port dimensions that reduce engine performance and efficiency.

When Cylinder Heads Require Replacement

Replace cylinder heads when compression tests show low readings indicating valve sealing problems. Coolant or oil leaks at head gasket surfaces suggest warped heads. If engine overheats repeatedly despite cooling system repairs, head inspection is necessary. Visible cracks in casting or stripped head bolt threads require replacement. Most cylinder head problems result from severe overheating or mechanical failure. Skip the new car payment and keep your current vehicle running smoothly with Garden Grove Nissan's quality products.