I have found a NOS set of pistons for the 1.9Mi engine. They are cast, 83mm, made by a Hungarian company and use standard rings. They have a big advantage and some drawbacks. Advantages: 37.5mm compression height, so 10.8 compression really cheap, almost free Disadvantages: 30g heavier than DFW pistons (20 from the pin and 10 from the piston itself) The rod is not laterally located inside the piston like the original. Machining is not as accurate as the original, but the company has a good reputation as they mainly manufacture diesel replacement pistons.   Should I use them or not?