Swap

OK so tried using the search but its not working for me.OK so I have been planing on a 360 swap into my 73 duster /6 car.I know I will have to swap the rear end brakes torsion bars and motor mounts.Could a /6 k frame with bb motor mounds hold a 383 or maybe a 400.Also would the motor even it and would a bb tranny even fit without ant tunnel mods.

If theres a mod around how do I fit my search thing.