Hello! I am currently working on a rebuild of my 2005 dodge caravan with the 3.3L engine. I purchased remanufactired heads and have now run into the intake manifold not sealing properly because one cylinder head is shaved down more than the other. Before I knew what the problem was I started and ran it for a sec. I immediately noticed coolant leaking from the intake manifold and shut off the vehicle. I checked the dipstick and confirmed that coolant did infact mix with the oil causing it to look milky white. I’ve decided to pull the heads off and go back to the original heads (replacing the internal parts with the new ones). They weren’t warped or anything, they just started making the tapping sound from the valves. My question is, giving the fact that coolant mixed with the oil briefly do I need to worry about the engine bearings going bad?

Any my advice is greatly appreciated!