The specs (HP & torgue) are basically (if not) the same as a truck (pickup) motor. As far as the crank is concerned there is a 99% chance it is a cast crank. I have yet to see a 440 motorhome motor after 1972 come with a forged crank. I left the 1% because there are exceptions to every rule. I would say that any 440 with trans is worth $150.00 regardless if it has a cast or forged crank (OK no windows or siezed ones). Cast cranks are alot stronger than people give them credit for.
Chuck