340 casting "revision numbers" check in
2780930-340-8 with a production of 11/27/1969
I had heard about the different dash whatever’s being better but decided after fifty years you could have the “best dash” block and the “worst dash” block and the best block to rebuild may not be what all was claimed to be best, but the worst…. After 50 years the best dash block to have is one that runs LOL.