Internally Balance Cast Crank?

AJ/FormS said

Well that kinof depends on what pistons, etc. get installed wouldn't it. I mean Hypers would probably knock off a couple of hundred grams or more

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Right on... with hypers and SCAT rods I would expect it to balance out internally by removing material from the cast 360 crank. Perhaps to include boring out a bit on the inside of the journals. I have been meaning to try to figure this out.....