Before I make a mistake please help new mopar fan!!

Well as far as fitment the 340 wins. But the 383 will fit with the right headers or manifolds and the correct oil pan. It's a lot more work to fit the 383,but out of the big blocks it fits the best like a 400. Best thing to do would be stroke it with a 440 steel crank for more cubes. How much for the 340 and how much for the 383?