Hi new here, ill make this brief,

I have began the job of changing my head gasket, i am at the block now and pistons are still clean and head is still straight ( verified with straight edge, what i would like to know is what is the clearence with ( feeler gauge ) between the block and my straight edge should i be looking for? Any help is greatly appreciated thank you , Infos on the car are at the bottom.


Chevy Optra 5 2.0L engine DOHC A/T 2004

Found this on the net and it seemed informative. Personally I don't like seeing more than 0.003 of warpage.
Common Mistakes to Avoid When Resurfacing Cylinder Heads & Blocks: Engine Builder

good site and good advices thanks again, sending the head now to get machined. rest is ok and exact specs are .25 i just found em, thanks again!