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View Full Version : Cylinder head thickness


paul-11turbo
12-08-2009, 20:44
Ok so what is the thickness of a standard unskimmed head and what is the maximum that can be taken off.

What actually happens when a head that has been skimmed a few times is fitted to the car?

does it lose power or just not run?
Kris M
12-08-2009, 20:48
73.5mm is standard IIRC ???
TrickyDicky
12-08-2009, 20:56
Ok so what is the thickness of a standard unskimmed head and what is the maximum that can be taken off.

What actually happens when a head that has been skimmed a few times is fitted to the car?

does it lose power or just not run?


skimming raises the compression ration, if you have a haynes manual it should contain all necessary info and dimensional details. if not let me know and i'll see if our autodata has the info.

:)
raj
12-08-2009, 20:59
What actually happens when a head that has been skimmed a few times is fitted to the car?

does it lose power or just not run?

skimming the head makes the car a little more responsive, it also lowers the detonation/pinking threshold. but there are ways around it. a few people run high comp engine without any significant probs.