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Decided to attack the oil leaks (all seem to be from the head, rocker box, cylinder base and of course PRTs). Came apart fairly easy. One cylinder to case stud was obviously stripped and just shoved back in the hole. All four of the end head studs were only screwed into the cylinders about half-way. Discovered that was because they were Helicoiled (Okay) and the swarf was still jamed under them. After spray with brake cleaner and 100 psi air, all clear and the studs screw down all the way. But, the worst was when I turned the head over to clean the sealing surface. What? Why? How? Who? When? the gouges are about .012-.010" tapering to .004" on both sides. Looks like a screwdriver was pounded in to get the head off - but there are no corresponding scars on the top of the cylinders. Photo was taken after a bit of rubbing with wet 400 grit on plate glass.