1987 Dodge D150 pickup 5.2l 318 cid

To just set and look nice too remind me of my grandfather. was such a great man he would love to see the truck nice with good parts to it. Its going to stay a farm truck style normal lift nothing special looking but I want the motor to be built as would he. So plz details on what would have to be done. Can I just buy a bigger crank or will I need to have it bored to something over ? I'm plan to have the whiplash 318 cam by huges engines put it it as well really just looking for more to do to it to make it quick and strong.