A 318 is a very solid foundation no one can argue that to compare one to a hemi gen 3 for performance potential is not realistic. There are wedge heads that will support big numbers on a big cubic inch small block Mopar . With a 318 You just can't get enough bore for starters, the biggest difference is block integrity. You can pump up a gen 3 to 1,000 horses no problem. See how long a stock la block will last with those kind of numbers. After dumping 15 grand plus begin to get it there. 600 to 700 horsepower is all I would expect a stock la block to be expected to take.
