I have clearance between TDC and top level of head about 3mm, I don't know how this happen... and do you know what is the purpose metal head gasket? from my two cents knowledge metal head gasket is a variable to adjust the compression.. so I shave head and block and counter it with metal head gasket.. do correct me if I'm wrong..
errr..have you check the piston deck height/wrist pin height comparing them to original piston?




