FishOnOne wrote:
I find it hard to believe the weak point is not the head gasket failures on two of the engines from the entire list.
Head hasket failures can generally be fixed through reproggramming the fuel/turbo mapping and is not necessarily a weak link in hard parts.
Take the 6.7L Cummins for example. When it first came out it was prone to blow head gaskets more than the previous 5.9L. The 6.7L's longer stroke and quick spooling variable geometry turbo added more low rpm cylinder pressure(torque) and the first thing to give was the head gasket. Add to the fact that the factory ECM's were not as good as they are now which made the fuel maps have timing spikes much like the first fuel map in this
LINK.In order to combat this, you have to alter the fuel timing and boost pressure at these rpms to decrease cylinder pressure( the new ECM's on the 2013+ trucks also helped with better mapping ability). Once this was done then head gasket failures become a thing of the past until you start getting into the really high horsepower which at that point head studs will be needed. I can run my 500 rwhp tune all day long without the need for head studs or head gasket failure.
