I have a flathead crank machined and ready for a clone block but the catch is the rod. Because of the long stroke and the 1" journal there is no rod available to fit existing Wiseco piston. I made calls to ARC and they did not advise that short of a rod because of the angle, and were not planning on making any. If you have enough talent to fit the flathead crank, you should be able to make a rod to fit. I got discouraged and lost interest and bought the stroker kit ARC has available to finish the engine. ARC has absolutely beautiful top quality craftsmanship in everything I have seen from them.