Was told to put a 240 head and intake on on my super c for a hp increase. What's the difference? I'm searching for the best options to increase hp in my sc for pulling. Wouldn't putting the 3.25" piston in it be the same as the 240? Or I've looked into a complete larger engine as the 135 Or the 153. Seems to be a lil extra work than just swapping the engine with the 153, I don't know about the 135. I'm really,wanting to pull farm stock and that requires original block. I just don't think I can make enough power to pull super farm or a in a cut tire class. Any and all help is greatly appreciated.