Guess that noise

I had the engine at the shop for a few months. The block checked out. The plan was to use a different stock crank, externally balance and put it back together.
I started to overthink the plan the closer hot rod season approached. Since nothing had been done with the rotating assembly I went ahead with option 1.
Considering this was the first engine I put together from start to finish by myself I’d say it went well. It started and ran for half the day hahahah
Although it was probably my driving that caused the bearing failure (haven’t torn it down yet) I have no faith in this block.

Currently searching for magnum 5.9’s.

https://youtube.com/shorts/zqrXeTIE2-Q?feature=share

https://youtube.com/shorts/tBKlMooEPYo?feature=share