Bending a rodney

Ironmike said

3 questions 1: how easy or difficult for that matter would it be to bend a high quality I beam type rod?

2: if one did indeed have a bent rod, would the engine vibrate at All RPM's?

3. With heads off, wouldn't it be pretty noticeable due to valve reliefs being "off", due to twist?

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Item 3 sounds like a rod twisted, not bent. Rods usually bend in a buckling fashion (like the elbow in your arm). I can't think of a force on the piston that would tend to twist the rod without also some buckling. (But, this is Ironmike's engine... anything is possible LOL.) If the rod started to buckle sideways, then you would see/could measure one side lower than the other at the piston top. (The 'sides' being along the line of the wrist pin.)

It could vibrate due to the rod effectively being shorter and the compression on that cylinder dropping; I would expect to feel that at all RPM's. If it was severe enough to effect actual balance, then the rod is probably into the cylinder wall.

I can't make a good comment on how easy it would be.