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Cylinder Head Replacement in Vantaa

A warped or cracked cylinder head needs replacement — otherwise a new gasket won't hold.

The head goes for machining to be flattened and checked — only a flat head prevents a repeat gasket failure.

Cylinder head replacement pricing:

Cylinder head replacement (remanufactured) – from €990
Machined flat head – from €250
Manufacturer OE head – from €1 500
Valve and guide inspection – included
Head bolt set (single-use) – included

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Cylinder head replacement

Price includes head, new bolts and labour. Machining and valve work are performed at a specialist.

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from990 €

When a cylinder head needs replacing

Cylinder heads are most commonly damaged by overheating. An aluminium head can warp by as little as 0.05 mm, creating cracks in the sealing face that let coolant into the combustion chamber. A blown head gasket usually also damages the head's surface, so the head has to be either machined or replaced. Symptoms of a damaged head: white smoke from the exhaust (coolant burning), coolant loss without a visible leak, pressurised air in the expansion tank with the engine running, and oil turning to a light emulsion (severe damage). Diagnosis is done with a cooling system pressure test and a CO2 test of the expansion tank.

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Why do cylinder heads get damaged?

Head damage is almost always heat-related. Overheating locally melts aluminium, and one significant temperature spike can permanently warp the head. Typical causes: coolant leakage, a stuck thermostat, a failed cooling fan, or a head gasket leak allowing combustion gas into the cooling system and raising pressure. Performance tuning without matched cooling upgrades is a third common cause — the extra combustion heat can't leave through the original cooling capacity.

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