I am researching what alternators were used on my Chrysler 426s.
The manual has a bunch of info but no model number.

I saw on the sierra Chrysler inboard parts catalogue that their model is 18-5954, but that product is no longer offered.
On the sierra site, it says their part is also for Chrysler alternator 3527501.
When I google that, I see a number of marine alternators, ranging from 60 amps to 90 amps. The original alternator is 35 amps.

Since I have one engine turning L and the other turning right, do I need a different alternator for the L turning engine?
Any issues with me upping the amps on the alternator? Will I have to upgrade the voltage regulator?

Thanks,
Akin