let hesd 135.12mm has this been skimmed much

[mirpur]

Was looking at a coscast head its been skimmed and currently is 135.12mm ,had this head been skimmed much and hoe many further shims could it have before it is no good,its for an let +1mm valves

[c20let-matt]

Don't know what measurement it should have but...I had my head which was already skimmed and had to skim it again due to some minor pitting.. it cannot take anymore as the inlet valves are at level with the head surface.

It is fitted and running great with both xe cams but low compression pistons

Edit: standard head gasket was used

matt