I guess we are off track and I remembered something that will get us back on topic. I bought 6 Evolution 46NT engines about 7 years ago. One of the things that impressed me was how all of the engines seems to have the same close fit of everything. The liners were very, very snug, and all of them felt about the same tightness. Tolerances seemed very close on all 6 engines. The liners went back in okay, but they certainly weren't drop ins. Pinch on all 6 was very tight at the top. It was a good show of workmanship.