I am putting an '89 mototr in a '95 H1 chassis. Everything bolted up, except the top mounts are different, and there is only one top mount on the '89 motor. Since it's only for vibration and rigidity, i think i'll make another little weinie aluminum bracket, to connect the old top mount on the '89 head, to the frame. The pipe is different, btw, because the Kips lever case sticks out more on the old motor. So, i'm looking for an old '89-'94 muffler. Other than that, it surprisingly bolted right up!