I've done a bit of research on the subject and still can't find where the engine is physically manufactured. I don't think it changes the point though if Porsche actually manufactures the engine or if they handed HD a set of plans and told them to make exactly what's on the paper, it's still a Prosche engine. So yes, I may be wrong in saying that HD doesn't make the v-rod engine, porsche does. But regardless of who does the manufacturing process the idea, design, working parts, look, ect, of the v-rod engine... all Porsche which still holds my point of pointing out that the v-rod wasn't really a harley idea like Yota mentioned. Sorry Yota, I just don't think they should get credit for something that's not theres, ya know.