i have my 3 inch albino oscar i was at my local marine store and they have a tiger oscar around 5 to 6 inshes long hes realy shy and been beat up his body and fins bare alot of scars they said theyd give me a good deal on him hes been there for months due to his appearance he seems happy and healthy would it be ok to try him with my oscar

If you have got the room then there is no reason why you can't try them together. Oscars will either get on, or they won't. Even Oscars that come from the same brood will not necessarily get along when they're adults.

ok the size issue shouldnt matter and that there of different kind of oscars

the size difference between those two oscars really isnt that much. you should be ok with them but be sure to keep an eye on things in case they decide that they dont like each other.