HEI Coil- E-core vs canister

Thanks for the reply. I was thinking purely from an ease of installation standpoint since they would simply install in the same location as the coil I have now. Then, I started looking and found these epoxy-filled canister coils that have anywhere from .3-.7 ohms primary resistance. They even have 45,000 max voltage. Since I don't know a whole lot about coils and their specs, I'm wondering if one of these would be equivalent to a e-core style coil. Are there any other specs to be concerned with beside primary resistance and max voltage? Would either of these contradict the point of going with HEI in the first place?

https://www.summitracing.com/parts/msd-8222

https://www.summitracing.com/parts/pnx-45111

Neither is really equivalent to the Ecore coils, but out of those two canisters I would opt for the second one.
One of the really good reasons for going HEI is for the reliability of the UCU over the older Mopar units.
The spark voltage is actually a secondary concern.