misfit41 All 427 rod are not interchangable. The 427 nascar rods and crank are different the bearing are wider. At high rpm the bearings where seizing up, even with the
oil improvements. I have a new set of Lemans rods c9zz-6200a in the boxes. I compared thwm to a set of nascars and they are wider. The crank was cut wider and fillets where added. I have all the part numbers. I thought the same. The big stroker FE motors are using chevy rods because it's cheaper to change pistons than buy custom rods from oliver,manley, carillio, and they have multi bearing combo's for there rods. Chevy bearings are wider than fords. The ford nascar crank # C9AZ-6303D. The rods # C7OE-6200A. The bearings are C9ax-6211-E or F. Rick Lake