EQ heads. seal guide metal nub OD machined to .534" for my inner springs. Found a set of "2 ring rubber" seals on the shelf & their ID is ~.461" measured with plastic HF calipers. I can fit one on the nub & it "feels" pretty tight/secure then I worked the valve stem up in it & it seemed "moderately" tight. Does it sound like I am OK here? the seals are EOK 125 & I googled them & got the "EOK" company but no listing for the EOK 125 that is cast/raised on the seal. should I superglue/epoxy em in place? & as far as fitment I obviously want em to stay in place & not too much or too little oil allowed to the stem. frequent replacement is a non issue. thank you for your time.