You will need an oil pan for a 360 LA small block. All Magnum motors, both the 5.2 and 5.9 use a 360 pan. Chrysler standardized the rear main cap to make it common the both motors. If your Barracuda had a V8 in it from the factory, you should have the correct centerlink. Go to the Magnum swap section to search how to get an LA pan to seal up on a Magnum motor.