About five years ago Performance Specialties ( http://www.pspec.com/default.asp ) sold true ABC liner and piston sets for OS 61SF ABC-P and OS 61RF ABC-P engines. I contacted them to see if they would be willing to manufacture them again and they are interested. As you may know OS has discontinued the liner sets for the SF. They would need an order of 50 units that could be a mix of SF and RF parts. The selling price will be $90 with a 50% deposit and 50% on shipment . It would take about 90 days to gear up for production. I have extra liner sets in my spare parts kit but it would be nice to have some Performance Specialties liner sets too. I think I’d order two sets. Is anyone else interested in trying to get an order together?