Wow. Not by as much as I was led to believe. The LA pistons might just work fine I. A magnum with magnum crank, rods, balancer and weighted flex plate. 30g is only about 1 oz.
Should you be multiplying 30 grams by 8 cylinders?
I have not balanced gasoline engines,
but I have balanced the rotors of big 100 to 600 hp electrical motors
and even 30 grams of imbalance will cause the assembled motor to “walk across the floor” due to vibration as it runs just below 1800 RPM with no load.
I would guess the vibration at 4000 to 5000 rpm to be very noticeable.
