5.7L pistons

I would highly recommend swapping out the pistons the stickers fail in a stock application. And for piece of mind should be replaced. A stock rod and crank with an aftermarket piston (bump up the compression a little about 10.5 or so) a nice cam and a set of free flowing heads should make a little over 500 at the crank. I know in my ram I ran all the supporting bolt on's and a set of pitted heads and a cam. And giving it a 150 shot it put out over 515 to the wheels. And launched my 5000 pound 4 door brick to the tune of 12.7@105 and was cutting a 1.65 60ft. A similar set up less 2000 pounds and nitrous should get you really close to your goal.