2 350 cranks: ESP cast steel, GM forged.
 

Eagle cast steel crank uncut, some journals have some small wear... looks borderline, may be able to polish out or may need to be cut.

GM forged steel crank cut 20/20 journals are great but has some light surface rust from sitting that would need to be polished off.

$70 for both, I have no use for them they're taking up space in my garage and I'm gonna end up knocking one over eventually.

http://beater.org/forsale/crankshafts.jpg

would either work for an LT1???

I don't believe so without an adapter? Forgot to mention they're both 2 piece rear main seal