valve spring height question

I think if it were me, I'd coat the locks with marking dye (dykem) and install them, move the valve a little, then take them out to see if they indeed seat properly. Or buy Crane retainers. IMO, if they were stock replacement locks made to work with factory retainers they would not change the installed hieght noticably... Since the retainer loads the locks that fit needs to be correct. I doubt it is.