The cylinder needs the ears reinforced.

A guy from Australia just shipped me an engine that he bought from the USA about a year ago.  He has had nothing but trouble with it.  We just took it apart and inspected it.  It needs a lot of changes to make it a reliable and powerful engine.  It looks like someone tried to apply everything they new about Chevrolets to this LT500.  It does not appear they knew much about high performance two strokes.  I wonder if the engine on the new ebay listing was built by the same guy that built the engine I just received from Australia?