My oil burning pig. Pics too!

AJ/FormS said
I'm having a real tough time imagining how rings can push oil up into the intake, to puddle on a closed intake. PUDDLE. Really tough.
It's got to be through the guides or around them. Got to be. Or a hole in the bottom of the plenum, if it's doing it to all of the intakes.

I would agree with that.

AJ/FormS said
Since you didn't like my first two tests, here is test number 3. Pick a valve that you thought was the worst. Put it's piston to the top on it's compression stroke and remove the intake spring and seat. Leave the seal on.Clean the head surface thoroughly around the outside of the pocket. Build up a dam with modeling clay, to a height higher than the valve seal, by about a half inch. Fill the cavity with some very light oil, like sewing machine oil. Pull the valve up.Mark the level.Let it sit overnight.

On the infamous BMW V8s one can pull the intake and see oil on the back of the valves. Or, one can pull the exhaust manifolds and see the trail of carbon from the valve guide right out the port where the oil burned coming out the guide past the seal. Some of those cars pass so much oil past the valve seals that just driving them in the shop would fill a 45 bay shop with smoke. Nasty. Ultimate driving machine my arse.