the o ring i read about on the teck site, between the head and cam carrier, did it come with the rebuild kit and is it on the pass side of the block i dont recall an o ring being there before but that doesent mean it was not there .im going to take off the front of motor to see if i can narrow it down some took a bore scope but just couldnt get the rite angle but its a pretty good leak so theres pressure thanks to all for the help thought it would be finished by now but still love looking at it its a good looking car again thanks PS sorry for the lack of punctuation tty