We specialise in professional cylinder head skimming services and pressure testing, helping you get back on the road sooner.

This service is essential for overheating engines that cause the cylinder head to warp. Our process resurfaces the head, ensuring a proper seal and preventing future gasket failures. Our in-house team can also address corroded or pitted aluminium heads by performing welding repairs before skimming.

Please note, that we do not have facilities for cast iron heads.

In a modern engine, the tolerance of the cylinder head should be less than around 75 microns (or 3 thou in old money). This fine tolerance is because the head gaskets used in modern engines are usually multi-layered steel gaskets, which are much thinner than older-style head gaskets and require much greater accuracy.

Cylinder head skimming

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Most petrol engine cylinder heads can be skimmed with the valves left in place and just the camshaft or rockers removed.

For diesel cylinder heads, the valves generally sit proud and will need to be removed prior to skimming. The valves can be removed by you, the customer, or by us (we do charge for this extra work if required). 

Three reasons to choose CCM for your cylinder head skimming

If required, we can deal with valve removal, fitting new valve stem oil seals and lapping of valves. Extra work is charged at our standard workshop rate.

We can set up trade business accounts to all local garages and workshops. 

If your aluminium head is badly pitted, we can offer an alloy weld to fill any voids before the head skimming process

All heads must be cleaned of excess oil before being brought to our team. If your head is deemed too dirty, we will charge for the time needed to clean it.

Our milling equipment has the largest and widest bed we could source and we have yet to meet a head wider than we can cope with. We do offer a local collection service for those who are unable to make it to our Crawley site as we are always keen to help.

Cylinder head skimming

Get back on the road