small block OEM bolt on timing tabs-

I don’t know the interchange in years, they clearly aren’t what’s on my motor, but if the measurement is the same then I’ll purchase one if still available.
67 commando 273 has a hole in it

https://www.forabodiesonly.com/mopar/threads/correct-1967-timing-tab-for-the-273.482333/
these are for earlier motors, however the measurements are the same-- it's all small block