[CSX 4027]

I will check back in my notes but so far it sounds like you said it right. The LeMans rods had a tendency to fail because they were too narrow and the original bolts were garbage. I believe that the Nascar crank and rods came out at the end of 1966 because they needed a bottom end that would stay together at a constant 7000 RPM'S. Yes they were heavy and wide and not too desireable by today's standards. I'll look up the scoop I had written down and get back to you...Steve