LA block questions

I am not messing with you guys. I was looking at a car to buy. The engine is a 340, I verified that with your guys help.

I am just not sure what kind of crank it is. Don't cast cranks and steel cranks have different looking balancers on them?

Hi matty, i came off a little harsh to you and i apoligize for that. We just like lots of info. and pics and i became impatient, my bad.

73AbodEE earlier said that the cast balancers for 340s are marked as such which i believe is absolutely correct, i've personally only looked at one before and it was also. Do you know what year engine it is?