318 horsepower

KB also makes two forged pistons for the 318 now too.....a flat top and dome. If you are going to buy heads go with a set of Edelbrocks....if you want stock ones swap to the magnum heads and use the Mopar M1 single plane 4bbl intake. If you use the magnum heads I would also swap to the bigger rocker studs and get a set of chebby roller rockers to bolt on.