Recently picked up a 99 Civic Lx with a blown headgasket. I had the head milled but I wondering if the block will need to be decked.

The deck of the block is straight except on the cylinder sleeves. The sleeves are made of 2 different metals and there is a .004" height difference between the 2 different metals of the cylinder sleeves. I checked with a straightedge and feeler gauges. You physically feel the difference with your finger as well.

Will the head gasket seal the difference? I can take pics later for reference.

Thanks

 

Did the motor overheat? It's always good to have a machine shop check it out but then to get it decked, you will need to take everything out.

 

its a good idea to let the machine check it out, most likely if it over heat its wiser to go the whole nine yard