Little help needed

I've got an idea on how to balance a clutch, but I need some info first to see if it will work.

Can anyone tell me the weight of the heaviest part of the clutch? This process will only balance the main components of a clutch (no weights, ramps, etc, no moving parts within the clutch), so if you have a clutch completely broke down and wouldn't mind throwing it on a scale, I'd like to know the weight of it. I'm guessing this would be the movable sheave or the spider / cover assy?

That'd be perfect! I know I'll have to allow for some variety of weight, but that'll be perfect for my testing.

Thanks!