I mentioned the Navi motor because you mentioned a 5.4L motor. You couldn't even back up your claim with the 4.6L(which is the topic at hand). So you brought up the Cobra R, which is not a comparison because it isn't a stock 5.4L motor. It is built for racing. That is why I used the Navi motor. To show you an even comparison of a production stock 5.4L DOHC makes. You can't have your cake and eat it too. BTW, the Navi 5.4L, a very nice choice for the 4V guys for a bigger motor if they choose to go that route. In fact some of the racers like Al Papito(Boss330 Racing) use it. Fact is, the 5.4L Cobra R motor isn't the topic of discussion for obvious reasons. First, the engine isn't in the topic, the 4.6L DOHC is. Second, the 2000 Cobra R Motor is a built motor for racing, not a stock factory production motor. Lets make it the same comparison and do some head work, and other mods to the LS1 and see where that goes. An LS1 stock makes 360-375 hp at the crank to the Cobra R's 385 which is not a stock motor. Come on man, lets be real here. I am still waiting for your factual data to prove to me why you said a 4.6L DOHC from 96-01 is a better engine than the LS1. All you have given is your opinions and brought in a different motor to back your claims. Please show me the facts on why the 96-01 4.6L DOHC is much better than a LS1 and not bring up different motors or just stop posting.