Early Small Block Timing Tab
Here are the 4 versions I have....as you can see, some are wider than others, and TDC is not exactly in the same place. I would recommend using a piston stop and verify, and if necessary remarking where it is. I believe in the second photo, the one on the left is the '64-6 273 version, the one next to it with the hole is I believe the '67-8 version. The narrow one and short one, I'm not sure. Probably truck or earlier small block.
![20230714_105319.jpg 20230714_105319.jpg](https://www.forabodiesonly.com/mopar/attachments/20230714_105319-jpg.1716114456/)