for some reason I can't get the right name but the part that connects to the upper balljoint and lower ball joint presses into. Can that whole part be swapped from an 02 accord to my 91 accord? Parts look simiular and I have a whole parts car at my house, and wanting the Roh setup plus it's got a lot less milles on it then mine.

 

I think you are talking about the knuckle. I once compared a 94 to a Gen 6 and they looked to be about the same. I never actually put them on the car. One thing that is different is in how the brake lines attach, but that is not a big deal.

 

Kind of interesting no ones posted anything saying yes or no

 

The knuckles are very similar if not the same dimensionally between 90-97. I believe 95-97 V6 Accord and 1st Gen Ody use the same knuckles. Prelude is the bastard child as it uses larger shanked BJs that will not work on the rest of the Hondas.
There was someone who did use 98-02 V6 (5 lug) knuckles on teh front of their car, but did not mention anything else techworthy.

My biggest concern would be if the steering arm is at a different height which would induce bumpsteer.

Since you have both cars, why not take a few measurements and see.
AFAIK front HOR or 5 lug conversion is never the problem, there always seems to be a debate on the rear hubs for 5 lug.