I have a 427 FE center oiler with Edelbrock aluminum heads. I recently developed a problem: some
oil smoke out of the driver side sidepipe, but more importantly, a fair amount of raw
oil in the pipe and blowing out of the pipe. The amount of raw
oil is significant. Through some investigation it appears to be from cylinder #6. To the best of my abilities, I do not believe it is a failed valve seal, nor do I think it to be a failed or broken ring (leak down test showed no abnormality and visual inspection of the seal looks good). Considering the amount of oil and the fact that not all is getting burned up, I have come to one conclusion that I would like feedback on. I think that there must be a failure/crack in the head from the pressurized oil channel going to the rockers to the intake of #6. It is the only place where there is oil close to the intake or exhaust for that matter. It could explain the raw oil getting into the chamber during the exhaust stroke and getting blown out the pipe without getting burned.
Any thoughts???????????????