Old Man Mopar said

383, 440 and even Hemis not a problem. On a Hemi you just have
to wait to put the valve covers on until you're clear of the shock
towers.

This means that the engine, trans and headers are all together
going in or out. you just drain the fluids, disconnect the steering
coupler and pull the steering shaft up from inside the car. Usually
take a bungee cord and loop through the steering wheel and hook
to the driver's seat headrest.

With the front of the body on jackstands and the rear wheels on ramps
for height to clear the rear bumper when the car is tilted up, hook a cherry
picker to the engine/trans/K-frame assembly.

Radiator out, pop the lower ball joints loose, slide the torsion bars
out and unbolt the driveshaft, trans crossmember and K-frame bolts.

Now, lower the engine/trans/K-frame assembly onto a rollable cart.
Hook the cherry picker onto the front of the body (bumper bolt points
work) and lift the body up so you can roll the engine etc assembly away.

You you make a dedicated cart and also a "tricycle wheel" assembly to
bolt in place of the removed K-frame, then you can just roll the car away.
It doesn't seem to hardly weigh anything once the powertrain is removed.

As in 62BT409's Demon Hemi install thread, you don't even need to remove
the hood. Procedures and lots of pictures here:

http://www.forabodiesonly.com/mopar/showthread.php?t=88358

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