the trans will bolt up but it might be too weak for the 360. I'm not sure what trans you got. It could be a NV 1500 or NV3500. but i bet its a 1500. Neither one of those trans were ever available behind a 360. You also need to get a new flywheel for the 360 since they are external balanced. It would be easier to install a 318 since it could use the same flywheel as your 3.9 and they were factory installed with the 3500 and probably the 1500 transmission.