5.8 Pro Boss knocking

[JBird97Nautique]

Can anyone give me some ideas? Hearing a knocking noise. I do see some oil leakage which I think is either coming from valve cover or head gasket. Manifolds seems ok and no smell of smoke. As engine revs higher, so does knocking noise. I am thinking rod bearing after watching some youtubes. Video and photos in link below.

https://photos.app.goo.gl/vD9SbBR6mBGEagdR7

[jpwhit]

Change the oil and filter and check for metal particles in the old oil. You can cut the filter open and see if there are metal particles in the filter. You can also run the oil through a strainer and look for metal particles. If you find any, then a bearing is likely shot.

[FMSKI]

Seems to be running well save the noise. I have heard clacks like that as exhaust manifold leaks, so pressure at 120+ PSI blasting out on a compression stroke. Makes a clacking sound.

[JBird97Nautique]

OK thanks will check oil it is due anyways. A lot of people have said its exhaust manifold leak as well. Hopefully that is the case!