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Message: [QUOTE="713Diesel, post: 421232, member: 7173"] #1 That makes sense. I find it funny that there for the longest time guys were saying they didn't want a diesel because of how loud they were. Now guys complain that a diesel motor doesn't sound like a diesel motor any more lol. #2 I disagree. The heads to flow perfectly fine for 325 hp. But I don't you think Ford/International would have loved to say that their motor makes 350 or 375 hp? I am just saying that whenever you spend the time/money on R&D wouldn't you think that you would try to achieve better than what you already have or what is already out there by the competition? My point is that head flow is a big deal and based on the flow #'s that I have seen for a stock 6.4 head leads me to believe that the engineers didn't think that head flow was a big deal. I tried to find the #'s that someone posted somewhere about the CFM that each of the stock big 3 produce but I cant find it to save my life. #3 I understand on the retooling cost. This one I imagine comes down to International seeing the writing on the wall with its relationship with Ford. I imagine it was well known by the time that the 6.4 was designed that both of them were going to separate their ways. I disagree with your statement on the extra cost on the head bolts. In the grand scheme of things this cost would be minimal, especially considering all the heart ache/legal costs they are experiencing with head studs from the 6.0. Also there is an economy of scale when it comes to this sort of thing. Its not like those guys buy 50 or 200 bolts at a time. They buy thousands at a time. So just for ease of #'s lets say that the stock head had 10 head bolts that cost them 100 bucks. If they went with 20% more bolts up to 12 head bolts I do not believe the cost for these would go up 20% to 120 bucks. The more you buy the cheaper it gets and when you have 10 different contractors bidding against each other for the contract to supply bolts to international I think the cost will be a very minimal increase. But that is just my opinion. #4 Probably so. I really have no idea. Now that I think about it more the K16 pump is quite more expensive than the CP3 pump from what I understand so I hope it is better. [/QUOTE]