these are new never run cast std bore pistons,cant remember brand but they fall about .060 under the deck, have a dish no reliefs and are around 8/9-1 deending on..... heard u can sonic test then bore a suitable 69 430 to std 455 or just usem in a real nice orig block like a nos motor or somthin these have rings,pins and a swept skirt design to save weight make me an offer id like 180.00 link me your email and ill send u pics these are better than average or generic ebay crap zollner/alcoa ken
