well that isn't necessarily true, very few machine shops can do it, the only place I have found is crower cams. They only charged $150. I even had a few machinists tell me it couldn't be done, and if you look at the 216 comopared to a 235 it doesn't look easy, but it can be done. you can use a 235 crank, but you need custom pistons. That is the expensive part.
