Dulcich 408 on dyno - offset heads

pittsburghracer said

I gotta find out where they were sucking oil from. After two tries I put my other proven set of heads on. (And intake) That was supposedly a brand new Indy intake I bought used and on two engines I had issues with the engine sucking oil. When I pull my 422 apart in going to take some measurements off both intakes.

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Just a thought, I once had a new motorcycle with an inline aluminum headed engine that had bronze guides. Had a sucking of oil issue, thought it was obviously coming from the valve seals. Took some real sleuthing to determine it was coming from the outside of the guides as pressed into the heads. The factory installed guides apparently caused fissures in the aluminum guide bores, oil was being sucked by on two intake valves. You Never know