Someone wanna help find the cause of death?

For what it's worth the previous owner apparently ran a hydraulic roller cam with solid lifters.
I can't explain why 3 pushrods bent though.

whitepunkonnitro said
The 5/6 pair seems to always be the first to feel an oil starvation issue.
I'm sure your block is fine, and the crank will probably be OK after a clean up cut.
Look carefully at the pump.
Original problem could have been something as remote as a pushrod bending and allowing the lifter to jump out of its bore.
These engines feed the lower end oil through the lifter galleries
Click to expand...

I was really only after the block and crank anyway. Hopefully everything is fine but there's a machine shop two miles from my house. Better to be safe then sorry.