The issues were so bad previously that I had already made my mind up to discontinue these and all of the AA economy sets from the store due to quality, but before I had time to give them the news they stepped up and made the part better without needing more than the typical harrassment that I give vendors when things are not up to par..
They have totally changed the entire cylinder and everything about it looks and measures much better. Only time will tell just how good they are but it is good to see that the finish, machining and materials are now drastically improved over the cylinders we received only two months ago from them.
Its kind of funny to be bragging about a China made part, but if you could have compared the two side by side you'd understand why the changes impressed us.
Our complete engines will stay with OEM bored German cylinders until the stock of them is totally depleted.. I'll be running some of these(AA units) in a future Turbo test engine and I'll see what it takes to split one-
Since we don't use these in our engines full reports of longevity and wear won't be available, and unfortunately they are an economy part that doesn't deserve to be thoroughly researched the way that we generally do things here...
But they are CHEAP!
