340/drivetrain build advice

ok, so you have a good block for the foundation. I agree sense you need to purchase a crank, you might as well build a stroker motor. I personaly would spend the extra and go forged, not the cast junk that is out there. The automatic trans, is fine, maybe freshen it up with a TF-2 kit and a deep pan, and a street friendly converter, and your good to go.