New Small Block Stroker Engine Noise

I just ran it for about 30 minutes listening with a Mechanics Stethoscope for noise. The fuel pump is very quiet, alternator just whirls around, the distributor makes no noise, some noise inside timing chain cover, intake manifold between runners completely quiet both sides, there is noise coming out of the valve covers but it sounds completely consistent no matter where you put the end of the stethoscope; no area is louder then another. Both sides sound the same. On driver's side I can even put the stethoscope probe right through the breather hole on the baffle; no different sound then the outside of the valve cover.

Loose hood hinges are NOT making noise (hood is not on). Transmission lines are not rattling. Headers have lots of clearance around everything.

Probed all around the oil pan, including where the crank scraper is. There is noise in the oil pan but it all sounds completely consistent front to back, side to side, except around the oil pump pick up, you can hear the oil getting sucked in.

There is definitely a racket on the torque converter dust cover and the lower bell housing. There shouldn't be. I could get the probe on one area of the upper bell housing from the top and no noise there.

With the front of the car high on jack stands running it is clearly louder under the car then on the top no doubt about it.

I let me 15 year old son take a shot at listening all around with the stethoscope to get second opinion. He sees it the same way I do. And he didn't get burned by the headers or stick his hand in the fan so thats good.

I'll be pulling the torque converter cover tomorrow night.