Cylinder Heads
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Cylinder Head
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Cylinder Head
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Cylinder Head
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Cylinder Head
Nissan 
Cylinder Head
Nissan 
Cylinder Head
Nissan 
Cylinder Head
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Rebuild Engine Performance with Genuine Cylinder Heads
Cylinder heads is an important part of your car. This is why it's important to keep cylinder heads well maintained. Cylinder heads seal the top of your engine's cylinders and contain the valves that control airflow. When heads crack or warp, engine performance drops dramatically and serious damage can occur. We stock genuine Nissan cylinder heads machined to precise tolerances for proper compression and sealing.
How Cylinder Heads Control Engine Function
Cylinder heads bolt to the engine block and create sealed combustion chambers where fuel ignites. The head contains intake and valves that open and close to manage air and exhaust flow. The Nissan Altima and Nissan Pathfinder both use cylinder heads with specific valve configurations for their engine designs. Coolant passages run through the head to control operating temperature. The head surface must seal perfectly against the block gasket to maintain compression. These components work with timing belts and camshafts to coordinate valve operation with piston movement.
Why Cylinder Heads Fail
Overheating causes the metal to warp and lose its flat sealing surface. Cracks develop from thermal stress when engines run too hot repeatedly. Valve seats wear and allow valves to leak compression. Coolant passages corrode and develop leaks that contaminate engine oil. Aftermarket heads often use softer aluminum alloys that warp more easily than genuine Nissan castings engineered for durability.
When Cylinder Head Replacement Becomes Critical
Replace heads when compression tests reveal significant pressure loss between cylinders. White exhaust smoke indicates coolant burning from a cracked head or blown gasket. Oil contaminated with coolant suggests internal head cracks. Persistent overheating after cooling system repairs may indicate warped head surfaces preventing proper gasket sealing.
Customers can order with confidence because of Capitol Nissan of Salem's friendly customer service and easy return policy.