273 timing cover 2128896 without cast timing marks

I believe I have the cover you posted, which is actually a replacement cover that Mopar made in the late 1970's for the '68 and earlier engines. It incorporated the '78-up design where the seal can be replaced without pulling the cover off. The original early covers had to be removed to install the seal. Unless you need the early design for originality, the later design works just fine.....as does the '70-up cast-in cover which is easier to find.
Hey that’s great! Thank you, I’ve got two other members who offered up some covers just waiting to hear back and confirm they’re what I would need…

Thank you for the explanation. I appreciate you taking the time to explain that. I’m still pretty new to all of this with my build and I don’t know, what I don’t know… that makes much more sense now looking at mine it does look like the seal would come out of the front…

Again I don’t know, but if I go with the same exact cover as mine (without a timing mark and with the external seal) what would I use for timing? I understand there is or was a bolt on bracket with timing marks (mine has nothing of the sort) I’m not really sure what I would need to do here for such a set up…

Until I hear back from the other members and if it’s correct, what might a fair price be for you on yours, if it’s available that is?