Zuk, just so you know, .5mm-8mm all cost the same to stroke. You might be able to get away with and live with not balancing the crank at+2, not a risk I'm willing to take, and you really need to be sure and put a new rod kit on it. Its not worth the trouble if you don't, they have to weld the pin on them.
DP, its a 4mil, no its not a Lt rod.