Ok my worthless 2cents lol I was told by Smith Bros pushrods to check the wear pattern on the cup and ball ends and there should be a ring contact pattern if so your good they told me the ball and cup should not sit against each other and if thats the case then the ball and cup are not sized properly to match and will burn the ends, to better explain call Smith Bros and have your pushrods and rockers on hand they will ask about the wear pattern.