Found a box with 7 brand new MP Hemi rods that came out of a 472 crate motor. Looks like they are a good piece, but the number stamped on them is 2468002. Thinking about just ordering one replacement to make a full set. I'm assuming that is a casting number, because the part number that MoPar has listed don't seem to match. Is that right? I know the motor they came from. Is the casting number different than the PN?