Hi I have a bmw 330d 231hp piezoelectric, soon I will start to work, I wanted to know what size the valves have aspiration of my engine, and if they are interchangeable with those of 335d 29mm or 34mm, if we want to change connecting rods and pistons, I can find the connecting rods, but I can not get any better pistons, can you give me some clues? injectors I would have to change them I'm like those of the 335d as flow, for the pump I'm opting for a r110,
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