I guess I know what a poly motor is afterall by those valve covers.. I put one like that in a Plymouth coupe about 50 years ago when I was a young guy. Had to go around the steering column with the back right exhaust but the original transmission bolted up to the V-8 motor. Flywheel, clutch, and driveshaft were the same too. Never had to move the transmission.. Think the radiator worked without moving it. Put a floor shifter on. Other than that she fit right in with linkages and fittings etc.... The motor remained on center too.. I remember it as a very easy job as I didnt have a welder or cutting torch. Torqflight would be nice.