Engine smoking advice

That freaking motor is 44 years old and you want to do a re-ring with the motor in the car--like its 10 years old, I say you are wasting your time.

However it can be done but not the cam bearings. Even the main bearings are going to be a hassle.

I would not do it. You could pull the heads and have them re-built but dropping the oil pan and knocking each piston out and honing the cylinders, you need to turn the crank journals down out of the way and watch you don't hit them, seems like lots of work for a short term gain. What if it still smokes cause it needs oversize pistons?

Sorry, I don't think its a good idea. Its a gamble.