RSPEARS is right on track for you. Find a 350 from a late 90's early 2000's Chevy PU or van. That should be a roller block. Keep the block and throw everything else away. Once you have determined what your goals are for the truck, daily driver, purpose built drag truck, or Saturday night special, we can help you make some choices. IMO don't do the LS thing so you can stay away from the computers at this point in your development as a motor head. If you do not have the knowledge, there will be no hair on the sides of your head and your wallet will be empty