/6 Swap
Will the mounts be different between those years? Seems that the mounts from 73 on are spool type and earlier are bolt up. Other than that it just like pulling a motor. Unhook all the lines and unplug wires and jerk it out. Try and get the slant to hang straight. Unbolt driveline at tranny and may even want to drop cross member. Support the tranny till your ready to let her down. Sometimes it helps to have a little added room under the car so the tranny can drop down. Take the radiator out so it dont get damaged. Let us know if ya need any more advice, after all this is FABO.
Small Block