Yup. In theory later revision numbers may have had more running changes incorporated into them, but even that’s not a guarantee because the revision numbers don’t correlate exactly to dates, some cores/molds needed more repairs than others.
If a run of 340-3 has revisions made and the new castings are 340-4....then there must be something in the 340-3 that needed correcting or adjusting....otherwise there would be no changes made?
