Originally Posted by BIG Laing
I actually agree with Mr C.
I wrote this ^ wondering what Mr C. would say to it.
The 6.7 internals can't handle the shear power a 6.4 can.
But spend 2-3K on deletes and tuner and the 6.7 IMHO is better over all, as long as you arn't going to treat your truck like chit.
I've never raced my truck, and I can honestly say that I never floored it from a dead stop and let it run the gears. I am convinced that the transmission would not handle the power while adjusting, and I wasn't about to test it. In fact, I am sure something in the driveline would break because there was simply to much wild power along with jolting shifts. Honestly, you don't need to start off hot to destroy another truck or car, just ease in to it..
I've never had a breakdown because I have always respected that the truck was not designed for a 1,200lb engine. I drive it like an old man, but tow with it like an animal. When you have 12K hooked and your EGTs are still cool, and you know there still isn't much out there that can stay with you on an interstate, you are king.
Correct me if I'm wrong, but I think stock 6.4L torque was 720.