gene told me he uses a post 54 235 crank and rods, to use them you need to have the thrust bearing in the block machined on both sides to fit the narrower thrust bearing on these cranks, the rod journals are narrower as well. Also you need to use a 235 cam as there is relieved areas where the rods would hit otherwise, even then you have to use earlier rods, as the later ones had an extra boss that would hit the cam anyway. Howard cams will grind you a cam with special lobes that will fit through the smaller holes in the block, as you will need to have the journals ground to fit in the smaller journals of the 216 block. (at least thats what they said they were going to do, mine didn't quite make it, I had to have it reground on a smaller lobe center, you have to give them specific dimensions of what you want them to do.) Also if you have someone drill the 216, crankshaft be sure to give them the exact placement of the holes in the main journals, if you don't they will drill them to the center of the journal, which isn't where the oil groove is. As far as oil pumps, gene said to use a 54 oil pump and pickup
