Well, it will take some time but the easiest and fastest way is to get some junker Chevy car with a SBC in it and remove the engine, trans, motor and trans mounts, cut out all the old mounts out and replace with all Chevy mounts aquired from donar, drop engine and trans in as a unit, if the rear end is a torque tube setup, it will need changed, the rear end from the donar car will work as long as it's got the right measurement from backing plate to backing plate, if it's narrower, you can tub the rear tires ( rin wider 1's to compensate ), if it's wider you'll have to take it somewhere to get it narrowed or find a rear end with the correct measurements, get a driveshaft made to exzact length. If it's open end rear end, you don't need to replace the rear end, just get the new driveshaft. You will also have to rewire the car using a painless kit or such or, you could adapt the original 6 volt generator onto a custom mount to the engine and put the battery for that in the trunk, this will run all electrical systems other than the motor, the motor will have an alternator and a 12 volt system would be run indipendently for the engine electrical, the car would actully have 2 electrical systems and a toggle switch or 3 pos key switch would be needed to turn on the 6 volt system for lights, raido, blower fans and other things. a Points distributor would be easiest for engine wiring.