I have a 1964 2000 (manual) with knackered engine. I also have a scrap 1971 p6 2000 sc whole auto car with good engine. Will I be able to install the auto engine into the manual car (and keep it a manual) if I swap the torque converter, for the flywheel/clutch? Are the crank and gearbox input shafts the same? Any other issues? I know there will be alternator/dynamo and positive/negative earth issues but will it be possible?