Lower intake manifold, oil pan, headers, bracket for power steering. Im guessing a larger MAF and injectors to match the extra displacement and power. If i were you going from a 302 to a 351 i would upgrade the heads too. Oh yeah, you need a new distributor too. Forgot about at least a 2.5 inch cowl to fit the extra deck hight. Lots of other little things too, im sure. I think that is most of it though. Bellhousing and motor mounts match right up.