Intake Leak

I didn't read each post thoroughly, but I didn't see any mention of sealant.

Are you using a good NON hardening sealant on the intake bolts when you put it together?

If not, try it. Sometimes oil can wick up the bolt threads and get sucked in, which would give you the symptoms your are seeing.

Have you noticed any trace of oil on the intake??

And, I assume you have put a flat edge on the intake mating surface, and the head mating surface? I would guess they did that at the machine shop when they milled the heads, but you never know.


I use this: