cast crank flywheel work with forged crank?

For sure no, the cast SC cranks used a imbalanced flwheel. The pics I saw show a rather large void in the cast crank flywheels. The guy who was posting had tried the same thing with severe engine vibrations resulting.

Vernon
 
oops i forgot to tell you i had an automatic (where i work everybody calls both flywheel & flex plates flywheels)

so does the same apply to a flexplate?
cast 89 is a no no but the 94 will work?
 
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