Hey guys, my cousin has 2 gxv340's, he sadi he would give me one, So i read all i could and I know the v means verticle shaft. I also read that the Gx390 Billet fly wheel and rod will fit this motor, I'm wondering if thats correct and also I'm wondering if the blocks between the 340 and 390 are the same just the 390 has a larger bore? So wjhat im trying to figure out is could the 340 be bored to fit the 390 piston? thanks for the help guys.