kerrlakeRoo wrote:
IIRC the fords numbers are actually substantially higher, the 6.8 has been listed with 320 hp and I believe 362. Ford has reduced the RPM used for the listing causing the apparent HP loss.
Edit add;
HP changes on 6.8 through 2010
http://www.dieselhub.com/specs/ford-6.8-triton-v10.html
362 hp was when the engine was measured at 4500 rpm
In 2016 the spec was changed at the same time the tranny became a 6 speed.
Horsepower (SAE net@rpm) 320 @ 4000
Torque (lb.-ft. @rpm) 460 @ 3000
The only changes appear to be the rev limiter and lowering rpm to achieve different economy and emission standards.
Those numbers I think are for the 3 valve V10 as found in the F series and the class A motorhome chassis. The E series uses the 2 valve V10 heads as the revised 3 valve version doesn't fit. The 2 valve version produces less power.
Both the Chevy and the Ford engines are good, and serve the purpose just fine. The V10 does have its powerband at a higher RPM, so needs to rev more when under load and some people find that disconcerting. The general consensus seems to be that the Chevy cab has somewhat better ergonomics, particularly more foot room, and maybe a little better handling. If this is a choice between the Ford E350 and the Chevy 4500, and everything else is similar, I would most likely choose the Chevy (with its greater payload).