360 Swap for the 65 Dart

since you already have a 273 car , it should have the proper steering center link (V-8 cars have them , not slant 6 cars!)

You will need a car center sump oil pan and oil pump pickup for a 360 (273-318-340 pan does not fit a 360)

You will need to make spacers to fit the drivers side engine mount adapter to the block (or buy a set of shumaker adapter mounts, since early a-bodies never came with 340-360 from factory)

You will need either early a-body V-8 exhaust manifolds or a set of headers for an early a-body V-8. 340 manifolds are from either later a-body, E body or 71-73 B-body and will probably not work on an early A-body.

IMHO,

Bob