i burnt a valve with my y8 and i have a good z6 head laying around and i know the cam timing is different by a half a tooth or something i need to know what is the best timing belt to use y8 or z6 and water pump to use because i know the 2 are different and what is the best headgasket to use the y8 one or the z6 one im just trying to get my daily back on the road i know its been done before its just everybody says to use different parts thanks