s13 or s14? It does make a bit of difference. Oversized valves are always good, except for adding a slight amout of weight to the valvetrain, which is never good. When I did a 99 s14 head(hi port, vs the s13 low port) there wasnt even enough valve seat to work a 5-angle job, so 3-angle had to do. There isnt a lot of room andwhere in this motor and fitting in oversized valves is no exception. I am just going to put stock valves in my head( when I get to do my own)
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