Connecting rod question

#1
I have an HS-50 67167c that I am rebuilding for a Bird Baja. I put it back together this morning and when I turn the crank the connecting rod hits the camshaft. I checked my part numbers and the rod I bought is what Jacks Small Engines says it should take. Has anyone else had that problem? I don't want to start buying other parts if I don't have to.
 
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