Did they make 13B or 12A with left side intake and exhaust? For oval racing purposes. It would be nice to get as much left side weight as possible. Also on the 13b crankshaft What is the output attachment internally threaded with keyway or something else? I what to attach direct driveshaft from u joint like on midgets and sprint cars, Thanks





This link showk sprint U joint setup from 400 smallblock crank. I want to do something similiar if possible. Might have to fabricate a little.

http://www.sprintcarexchange.com/u_joints.htm