It is all too easy to build any small block MOPAR. It matters little whether it is a 273, 318, 340, or the original stroker, the 360. It is the same recipe Chrysler used. They did it with the 340, then moved the same parts to the 360, later to the 318. Get good heads, pick a cam with matching components, pistons to work with the fuel you will run, a 4 barrel carb, an intake, a distributor with a quick curve and decent exhaust. For what the OP wants, any 318 heads will work. 318's did not make 230 hp, but it is easy to make 300 hp for little money.