Couple questions

[JMurray]

I haven't posted in a while, have a new baby and things got busy, anyway, while I was on hiatus, I decided to take a new direction with the 68. I want to go bbc would like to do a 496 but have some questions about price to power ratio between a 454 and a 496. The truck will not be a designated racer, more of a weekend warrior that might get taken out on he town every now and then. What do i need to look for in a motor, i will build it as a father son project with my oldest, what if any is the difference between a car 454 and a truck, when it comes down to stroking it? is there any cast nums to stay away from, bad years of manufacture? What should I be looking for, a stripped block, or a intact motor, and what is a price range i should expect to pay for it? also on rear ends, it has a 12 bolt from the factory, but will this holdup to the power, if not would a 14 bolt be a good alternative (have one sitting around)

Thanks for any help.