Skim Head for 4G15

[Speeder]

Dear sifu,

I would like to do skim 4G15 engine head to increase compression ratio as well.

May I know how many max mm that can skim which do not harm engine head and at the same time still got some allowance for next skim if engine head bending?

Please give your comment and advise, thanks.

 

[SkYwAlKeR]

dont skim until u cannot see the depth circled in blue... thats the indicator... if ur cylinder head skim till flat cannot see the depth means time to change cylinder head....