DrewE wrote:
The V10 used in class C's is not the same version of the engine as used in class A's. The version used in the E series (class C's and vans before the E series vans were discontinued) has two valve heads and somewhat less power than the 3 valve version used in other vehicles. Apparently the larger 3 valve heads don't physically fit in the E series chassis.
Very true and an excellent point !
The 6.8L V10 makes its power at higher RPMs than a diesel
(or even the old Ford gasoline 460). A higher
(numerically) finally drive is important. Holding 5th or even 4th on hills or in high altitude will make a big difference.