did everything correctly ???..u must be deaf / dumb / blind / and stupid ... it is not my resposnsibility to make sure that the pistons are installed correctly and that the cylinder walls were bored correctly ...it is the machine shop ..I should be able to be totally ignorant of the process ..ask for a service ...pay for the service ..and get a finished product ...it is the machine shops fault ..who else should the fault be ? -U spend almost 2k in meaningless labor then say to yourself "do worry, be happy" and see how far that song lasts while your walking down the street because U can't drive your z ..... but the pistons were checked for install and manufacturing defect already , and I didn't get any coating on the side of the pistons ..only the crown ..