Being one of the early replacements mine was a long block. Was done at ~15,000 miles in 2019. I now have 46k+ miles. However...I think the knock is back. Thought I heard knock again recently. Some cold mornings coming up this week where it can be heard better.So your first engine was replaced due to knock, and the dealership botched the reassembly causing your 2nd engine to fail.... Nice. That's exactly what PRJ and I were afraid of in the context of the short block replacements. But sounds like they REALLY botched yours, haha!