216 to full pressure need info

[Zach B]

So I'm going back to original on my 47 chevy truck or at least show quality. Everybody tells me get a 235 and buy a kit to make it look the same as the 216. The thing is I know the difference so well that even with the kit I can tell the two apart. I read a thing some years ago about machining 216 to be full pressure like the 235. I actually found a machine shop that specializes in doing this. The problem is they are in CA and I'm in MO. For those of you who don't care about distance the shop is Becks. This is the only place in all 50 states I have found. Does anybody know of anybody within MO or OK who would have knowledge and skill to do this? I don't want to risk somebody ruining the crank because they told me they could do this and can't. So I'm looking for a good machine shop.