be ok i guess, needs some machining done, also make sure u keep all the guages sender as they reads differently from head to head, personally i wouldn't use the stock rb30 rod, if u see how long they are, and how thin they are coparing to the rb25 or 26 u be getting forgies, also use sr20 bottom end bearing to help with incearsed load on the bearings. sr20 bearings are more durable than any rb series bearings.