Cylinder Heads

Maintain Combustion Efficiency with Cylinder Heads

Ever wondered how your vehicle adapts to various driving conditions, or when it might need some expert attention? Cylinder heads seal combustion chambers and house valves controlling your engine's breathing. We carry genuine Nissan cylinder heads engineered for your Kicks and NV engines. Aftermarket cylinder heads often use casting processes that create internal voids leading to premature failures.

What Cylinder Heads Do

Cylinder heads mount atop your engine block to seal the cylinders where fuel combustion happens. They contain intake valves admitting air and fuel plus exhaust valves releasing burned gases. Internal coolant channels regulate extreme temperatures while the heads maintain structural integrity. Spark plugs thread into precise locations for optimal ignition timing. Camshafts typically mount within the heads to operate valves at correct intervals. The flat mating surface must seal perfectly against the block to maintain compression.

Why Cylinder Heads Fail

Continuous thermal cycling from engine operation causes metal fatigue that eventually produces cracks. Severe overheating from cooling system failures warps the sealing surface beyond repair. Corrosive coolant attacks internal passages, gradually weakening structural metal. Generic aftermarket heads frequently skip proper heat treatment, resulting in softer materials that fail sooner. Pre-ignition from inferior fuel damages cylinder head surfaces permanently. Years of service eventually wear valve seats and guide bores beyond acceptable limits.

When Cylinder Heads Need Replacement

White exhaust smoke indicates coolant entering combustion chambers through head cracks. Persistent overheating despite adequate coolant suggests warped surfaces preventing proper gasket sealing. Milky substance in oil means coolant is mixing with lubricant through internal cracks. Compression tests showing low readings across multiple cylinders often point to head problems. Most cylinder heads last the engine's lifetime but fail from overheating or neglected maintenance. Replacing damaged heads along with servicing valve covers during major engine work prevents oil leaks and ensures your powertrain operates smoothly for years ahead.

Customers can order with confidence because of Morrey Nissan's friendly customer service and easy return policy.