Yes, it's one of the things that is proof Chrysler was a company of engineers and machinists.
>>> If you have the 69 FSM, the letter specs are published in the 426 bore size section of engines. This is one of the reasons why our engines lasted so long - pistons fitted to the .0003 spec.
I would love to see the factory data for all the other motors - happy to see it on the Slant block above in the first post. When I removed my untouched 383 4 bbl from my Charger, the letters were there. I was amazed they took the time for a 383. Makes sense for the Hemi's. Now proof for a slant. Amazing.
