This is a matching set of engine case's. Removed from a running 2006 seadoo GTX 215.  
There is no cracks in this engine case. Engine developed a rod knock and luckily was shut down in time.
No cracks or holes in the case just some scuff marks cylinder will need to be machined. Yes it will need to be machined.
 
Please view the pictures carefully.  
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Thanks James 615-714-7508