Balancing an engine

I "grew up" in a machine shop, and one of my jobs was all the engine, drive line balancing. So, of course I'm a firm believer in balancing. Even the 401 I built for my Jeep is balanced, and it's built to redline at 4300 RPM's (it dyno'd at 4288 ), all bottom end power.

But what nobody has mentioned yet, and I'm just throwing it out for your own information: a dollar bill, a twenty, fifty or one hundred dollar bill weigh one gram.

Just some trivia.

Also, when balancing an engine, you weigh the oil that is in the throws of the crank rod journals in computing your rotating bob weight.

Russ.