[Ieatcamaros]

Andy you are correct that an inside mic is not really the right tool for the job. I don't work in an auto machine shop so an "indicator that is built into the rod reconditioner" is not exactly what I use but it is the same thing more or less. Let me say that I know you are not trying to pick a fight, while it is on my mind. I don't know you to be a smart a$$. Back to the point, You could use an inside mic but the results will be shady. Same goes for a telescoping gauge. A bore gauge would show the "ovalness" if it has the right indicator on it. Not one of those cheap a$$ ones you can get for $20. I use a bore gauge to check mine with and I have also indicated them just as you would on a rod reconditioner. I even check the distance between centers on my rods. A rod that is 1/2 thousandths out of round (.0005") will work just fine on a street car. But I would not want it in my racing engine.

Rev, an inside mic wouldn't really work because they only measure to the nearest tenth (.0001). You might measure it to be round but the next guy will say it is a half thousandths out. It's a "feel for it" kind of thing. And the other reason is because it would just plain take too long.