It took us a year to have these made. These were made using the original CASE 6415A Blueprint. Each Piston comes with a “Fitted” Steel Pin. Pistons are Cast Aluminum and measure 4.55″ overall height, 2.45″ Height from Center of Pin to Top. Weighs 3.45 Pounds. We will sell 1, 2, 3, 4, or whatever number of Pistons you need, or put together a Sleeve & Piston Kit for you. Please call or e-mail with your needs. 315-585-9826.