So my question is does anybody know what effects the bow bash does? Is it in the block category and shield bash perks affect it or is an unarmed attack and unarmed damage comes into effect?

I noticed that I do some (very little) but some damage when I hit an enemy this way but I was wondering if any skills affect the damage done.

I believe it counts as a Shield Bash

http://www.uesp.net/wiki/Skyrim:Block

More importantly.. this line "but only regular bash attacks can be done using a bow (power bash attacks are not possible with a bow)." I don't know, however, what the damage is based upon.

Ok, so the Power Bash perk doesn't affect bashing with Bows. But does the Deadly Bash perk affect bashing with bows?

Okay so it is a block. What perks work with it.

any perk that affects Shield Bash, BESIDES, power pash.