My rebuild just took a turn for the worse. More $$$$. All the cylinder walls looked good I thought when It was magnafluxed. I found a little lip on 1 of the cylinder walls so now they need to be bored out which means I will need larger pistons. I have 8 used balanced pistons (standard size) for sale. I think you are in russia so not sure if you can get them there. Shipping from the US is probably pretty expensive.