If I took my cams, valves, springs, retainers out of my head and only had a bare head would it still be a stock head???? I have no porting or polishing work done. IMO when someone says the head is stock but valvesprings/retainers have been upgraded it means that there has been no porting or polishing or reshaping of the combustion chambers. The original casting that Honda put in the car is still there.