72 duster resto
I've not done an engine rebuild before so no tooling or resources for that outside of this site.
oh, i'd forgotten to clarify. i'm not talking about a full engine rebuild.
i'd pull the heads and see what's up. my decision on checking the mains and rods would likely be influenced by what i saw in the bores and combustion chambers as well as what may or may not be in the sludge of the pan. if everything looked bueno, i'd just throw gaskets at it and ship it.
but checking bearings isn't all that difficult, and you're there already, and it gives a tremendous insight as to the condition and health of the motor.
100% i'd be checking the cam. likely it's printed right on the snout and you don't even have to pull it. that way you *know* what you've got and that will critically aid you when making immediate decisions (tuning) and future decisions (converter, gears).
none of this requires any additional tools or resources beyond what you should currently have in your tool box and the added expense of a degree wheel, which you could likely borrow from a friend.