[Gompers]

Originally Posted by ccpullin

That is where they typically blow, right at the oil return passage and suck the oil right in to the cylinder. What a mess! It's worth trying head gaskets first to see how she runs and condition of the hydro. Be sure and true the head surface. I use a thick piece of glass on a rug with 600 sand paper wet, going in a figure 8 motion until all of the surface is true. Typically they are warped in the head bolt area usually .004 to .008. I also spray brake clean in the ports and watch around the valves to see if they are sealing (brake clean will leak through where water wont).

Yeah was planning on truing up the heads. Probably tear them the rest of the way down and take a look at the margins, seats and guides while I have them this far down. One of the heads was missing an exhaust stud too, so I'll have to see what's going on there.

Appreciate the advice! This is the first CH I've torn into. Not too bad of a job so far.