Flywheel for 318 and NP435

Maybe. I have a bellhousing. It looks correct. I just need a flywheel. I figured I'd be better with OE, vs a junk China one.

Is that cast iron? In the later 70's and 80's they were aluminum, and had a timing window near the top.
Pulled it out of local yard, as they were crushing out. Yes it is cast iron. Date Code seems to indicate late '72 build date for a '73 model year vehicle er truck.