Ross Racing Pistons made the Blanks which I¨m finishing,crown and Valve Pockets on, adjusting weight to target just below 400 grams, they came in at 542, but after Valve Pockets and the angled crown `got milled it´s down to 458 g.
Ross are super responsive and did meet my schedule and I was able to pick up on the east coast a couple of weeks ago, I sent my sketch dimensions from my CAD as pdf, and they work in Pro Engineer. I´m happy to get this motor back together with the right kind of quench pistons. I have been running some makeshift regular pistons. for a few years so it´s about time.