[blykins]

No 428 block will go to 4.250, or even 4.230 for that matter. A 4.250 x 4.250 is meant to start with a 427 block or an aftermarket block.

I have no clue how he's getting to 482, unless it's with a custom billet crankshaft.

Yes, I have had bad experiences with him, a couple of years back. He bores his blocks on the floor with a portable boring machine. That should give you some clue as to how professional the shop is.

Well, I will say this....that was about 3 years ago. He may have changed his ways since then.