Just for an update:
Managed to pull the passenger head with the motor in the truck. As I’m tearing down, I realized the motor was in fact a 6.9, not 7.3. 7/16ths head bolts. Not sad about it, slightly irritated with the previous owner as he told me it was a 7.3 though. Whatever, not the end of the world. Bought the truck years ago anyway.
Pulled the head and looked at the valve that had a worn rocker, bent rod and screwed up lifter. Valve looks fine, no play in the valve. Cool. What I did fine is much more disappointing.
The pistons are pretty banged up. The one with the bad push rod and lifter, actually has two different spots on it from where the valve made contact with the piston. I assume this means either the piston pin or the rod bearings are toast. I was actually able to rotate it just a little bit. I’m just going to be pulling the whole motor and doing a rebuild I guess. I mean that’s really my only option here correct? Hopefully the crank isn’t worn to **** but the piston looking like that kind of explains the horrific knocking noise I heard the last time the truck ran. What a bummer dude. Glad I pulled the head at all of yours recommendation. Would’ve sucked big time to slap in new pushrods, lifters and rockers and then fire it up just to hear that knocking again.