Hey guys I recently got a 1988 z28 that had an engine swap to a 1966 327 which is making some noises. I can't quite figure out what is making the noise.
I'll start from when it made the noise...

For a week it was making the noc sensor rattle only on heavy acceleration so I drove it easy. Decided to take a trip, oil pressure was between 25-30 after about an hour of driving it made the ''your wheel is falling off'' wobble sound so I pulled it over. Peeked at temps ect and notice my oil pressure was at zero. Popped the hood, no oil. Turned off the car, got it towed. Now I put oil into it, the pressure is around 30, it makes no sound at all unless revved to 3-4gwhere it makes a dull sound which sounds exactly like a spun rod bearing. My problem is it only does it when revved high or driving at 25 mph and up. Does anyone have an idea of what it could be if not a rod bearing?

 

You ran it without oil for how long? If the noise is not a rod bearing it's most likely a main bearing.