Engine failure after oil change

No cast cranks for 273. Those were all forged steel. Solis lifters dont colaspe due to lack of oil pressure sou wont hear a lot of top end noise from a 273 either
The lubrication is only part of a circulating system. A certain amount of cooling is accomplished as heat is transfered to and carried away by the oil.
I've seen a couple of engines so messed up ( different causes ) that enough pipe and leverager would turn the car on its side before rotating the engine.

You'll need to pull the distributor and radiator, fan and spacer. Seperate the exhaust pipes too.

Throw a strap around the torsion bars to catch the tail of the trans. Remove that cross member and lower the trans tail as far as possible. You'll need a catch pan there and when the torque converter comes out with the engine you'll need another catch pan at the front of the trans.
Good luck