Originally Posted by 68hemiss
He told me that "he has to take 200 grams out of the crank which is almost impossible".

A factory 440 has a bobweight over 2700 grams (depending on year etc.)
Just reducing all the counterweights from 7.50" dia to 7.44" dia would remove about 200 grams.
Alternatively, drilling a 1" dia hole 0.9-inch deep (plus the drill tip) in both the front and rear counterweight will remove about 200 grams.

Not a problem at all. I have seen more holes before.

crank throw rear.jpgBalancing_Drill_Point_Chart.jpg