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Density is increased by the forging process itself, even the cast steel cranks are lighter. Rotating weight can be a great place to go on a diet and often costs less than free.



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Is that correct? I do not think the density is much different if cast or forged, however, I am not so sure the socalled Cast steel cranks are really that!! Steel is difficult to cast, but iron is simple, and some people say their nodular cast iron cranks are cast steel!! 4% carbon make them all lighter than steel by appx 5%.
If the Scat 4" stroker cranks really was cast steel (I think I read so) I would buy them right away at 300$, or any comments???






I would think that forging anything could increase its density but if that is not the case I stand corrected. I went to the scat website and they refer to the cast cranks as "CAST PROCOMP" but dont call them cast steel anywhere I can see. I think they have been advertised as cast steel ( by resellers? ) in the past and "cast 9000 series". Scat shows the weight of the SB mopar cast crank as four pounds less than the their 4340 forged crank (56lbs vs. 60lbs). Maybe these things being true cast steel is a myth.

1971 Factory Appearing Duster 340 11.000 @ 122 mph