Not sure if I am getting reversion or what. Stainless marine exhaust. Pressure tested and are fine. Prior to assembly of long block.. engines where dyno’d no water in the oil then.

anyways took the tails off to see down In the manifolds. One side has a little dampness on other 3 are fine. But I happened to noticed as I didn’t before while assembling these ports one being vertical one being at an angle. Could this be my issue????

Not again!!!!!🤦🏻‍♂️
get a professionnal advice on your particular set up! I know you know it is expensive when /if you get water in oil again due to exhaust problem!

yeah I’m gonna go find a tall bridge at this point I dono what is happening

Desperate at this point for a professional opinion. This is the 3rd / 4th time. I don’t know if it’s exhaust but it’s about the only thing that has changed since dyno day last month.

And it’s BOTH of them again that’s why I’m completely lost.

Both engines oil.

Starboard oil filter

Port oil filter

I believe your not to far from Mt Juliet. Since your close to there I would give Eddie Young a call or go by his shop and explain to him whats going on and the specs on your motors. He is always willing to help someone with their issues and offer advice to help.

What about the cooling system, was that the same on the dyno as in the boat?

I would pressure test the oil coolers first if it were me, since that would be my first guess on water in the oil.

I thought I remember seeing he got new oil coolers. I would think that there is a pretty low chance of both new oil coolers on each engine going bad at the same time.