Yes TexasProton, you have it! Just remember though that the 12 O'clock position you are referring to is in reference to the head itself (the actual marks on the heads). So if you are standing in front of the engine looking at the marks, the passenger side would be at 10' O clock and drivers at 2. It's all the same thing as long as you understand that 12 O' clock is in reference to the timing marks on the heads as if sitting on a bench horizontal, but on the engine installed it is 10 and 2.