So I have 4 cylinders and pistons that were removed during 7463V's annual in 2015. The engine was topped because I got a killer deal on 4 brand new jugs from AirPower. They were all above 68/80, but the engine was right at 1500hrs, and I figured it would be better to go ahead and spend a little money having the internals inspected and the top replaced while at it. I took the removed cylinders to Continental for inspection and discussing overhaul as a "just in case" for future use, but I found out that they wanted more to overhaul than I paid AirPower for new. That being said, the old cylinders are all sitting in my hangar in boxes, and I'm not quite sure what to do with them.
My questions: Is there any market for resale, recycle, or reuse? Are there other channels for overhaul beyond Continental? Or do I just throw them away?
Just don't want to be a bad steward of good materials if there's something that can be done with them other than tossing them in a big blue bin. The valves were removed by continental for inspection, but they're all packaged away in the boxes too. Any guidance would be greatly appreciated.