I believe that "arma-steel" is a name Pontiac used when they were making their own crankshafts. I don't believe "arma-steel" is actually a type of material.... But I could be completely wrong on that.
Secondly I'm not looking to "praise" the factory Pontiac crankshaft (but maybe we should) but I certainly believe up to a certain power level little will be gained by purchasing a forged crankshaft "just incase". The power levels the good ole 103 survived at in the Grocery Getter will never be reached by 99% of the folks using a forged crankshaft.... JMHO
I also think if the forged Chinese cranks were around back in the day the Grocery Getter guys would choose to use them over a 103 crankshaft, I know I would.
You can talk numbers all you want, but you also need to consider on paper the over the pond cast cranks are much better than a factory 103 crank.... I'd choose to go with the 103 crank nine times out of ten.
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