SBC Crank strength?

[MystryGuy]

Ok since i've never really put any wild sbc's together, just stock BS... what are the strengths of say a Cast Eagle crank vs a forged? What are their hp limits? I'm looking to put together a simple and cost effective shortblock for a turbo car even if it means more labor then $$$$

 

[Sean]

cast iron 500hp
Cast 1053 steel is good for about 600 hp.
Forged 1053 is good for about 700hp
forged 4340 1000hp+
billet 4340 1000hp +

Depends on numerous factors.