It has no casting numbers just a number 1 stamped on it... I'm thinking it's proably an after market piece ??
yes, a hemi crank will work in a 413,440,426w, and a 1961 383, with the right flywheel and a proper balance job. ( I once put a cast 440 crank in a hemi!!!)
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Would a hemi crank work in a 440?? It did have LY rods with TRW position
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Not sure if you could see from these pics but looks like weight welded to it also has 3750 & 3660 stamped on it
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And some more pics