Generally yes but I usually try and get a whole set of them out of another head when I'm over at LKQ or wherever I'm usually these days I just send the head out and have it rebuilt or overhauled or the valves ground and everything checked and put back together and phasers checked and all of that and go from there You can even buy these things when I check before when I was doing my 2Z Prius engine a remanufactured head from one of the big suppliers was only like 300 bucks 3:30 something like that certainly was worth it rather than trying to source a bunch of parts and a bunch of machine shop labor locally there are big companies that do this for the big parts outlets so they're usually ready to go so I take an advantage of that a few times the savings that I'll have by sourcing parts and having a machining and all done locally sometimes now there isn't a savings.