i might of meant to say 9/16 stroker, im not sure what they call it....all i could hear from him was ground the crank to 2" and use some 327 rods..it was loud at his shop.....took my old block to the machine shop today and the guy was talking to me about building a 3 & 9/16 engine....sounded like a pretty good engine....what makes up this sorta engine ?