Congrats on even aquiring a 410, they're not as plentiful as they used to be . Essentially the 410 is a 428 in a 390 block.Same crank and rods just different bore(4.05 as opposed to 4.13) I've had several 428's and I wont bore one past .030. The cylinder walls in these blocks are thin from the factory. I work for a foundry and we have actually X-rayed and sonic tested some of these blocks and core shift causes some very thin walls. If you want my 2 cents, I would bore the 410 block (probably a c6ae or c7ae casting) .030 over. this will give you 417cu.(nominally), and all the benefits of the 428's stroke. If money is no object, a set of Ross or Venolia(if you can find them) pistons would be awesome. I use Ross pistons in my Pro street 428. Compression is 10.6-1. If your on a budget it's hard to beat a set of TRW's or KB's.