Ok, I just got my 4mill together and started it up for a few seconds, ran great. As soon as I put coolant in and started it up again it started leaking out in the middle of the cylinders at the bottom of the head. So I figured I pinched an oring, took it apart and put new orings in. But same thing, still leaks. I had powder coated them so I figured they warped, ran a stright edge across and couldn't get any feeler gaugesto slide under at all. Now im stumped I wanna coat the orings with rtv but in the back of my mind know thats a stupid ass idea. Anyone got a clue about this? Yes i tourqed it, and yes my studs are screwed all the way down.