With the lower speed limits especially, I wouldn't doubt it! Going faster is worth the extra $ to do it.

 

Same engine, same calibration, same everything, except that power is declared at a lower speed, resulting in a lower power rating.

 

Obviously the 6.2L is quite a bit less complex than the 6.4L and 6.0L Powerstroke engines.

You should be able to service the engine without pulling the cab, but as Crazy001 mentions, it is sometimes earier to do so for major repairs such as cylinder head gasket replacement, as such.

 

So does that mean it makes the same power, but is just rated for less?

 

It's rated at a different RPM.

If I remember right it's rated at the torque peak rather than the HP peak.

So the same engine will perform the exact same way, but for reasons I don't understand rated HP is different from peak HP.

As an example, consider your van. It makes 410 ft-lbs @ 2,700 RPMs. If it were rated the same way the new engines are in dually applications it would NOT be referred to as a 265 HP engine. It would be a 210 HP engine(410 x 2,700)/5252.

Same engine, same peak HP, just rated differently.

 

Thanks Tom, Now it makes sense.

I knew it was rated at a lower RPM than the peak HP, I just did not know how they decided what speed to use.
What's the reason for rating it at the torque peak?

 

The power and torque for the over 10k GVWR Superduty 6.2L is rated at 4200 rpm (hence the lower power number versus the F250). The engine still redlines at 6000 rpm.

On the F250 the peak horsepower is at 5500rpm and the peak torque at 4500 rpm.

 

Why 4200 RPM, when the peak torque is at 4500 rpm?

 

Thanks for the correction, Mike!

Sorry to confuse things, Bill. I read about this awhile ago and I thought it was at the torque peak. Looking back I'm seeing 316 HP and 397 HP, both rated at 4,179 RPMs.

So not quite torque peak, but both numbers are rated at the same RPM for some reason. Why is this?

 

Compliance with EPA noise requirement

 

Your kidding me!

 

Thanks Mike,

Is Dually exhaust noiseier? Different configuration?

thanks, Doug

 

I was wondering if Ford has given any thought to making the 6.2L (or maybe a larger version of the 6.2L) available in the F-450-650? I am in the commercial truck fleet business, and I think we might see a return to gasoline engines in medium duty trucks. Diesels are becoming so expensive and such a hassle that I think fleets that don't see really high milege on their trucks would see an overall cost savings with gasoline.

 

You can still get a V10 in the F450 and F550.

 

Hello Mike, I have two questions:
#1- I may be the odd one out:
I enjoy driving too much to be able to give up manual shift. Are there any plans to bring back 6 or for the matter new 7 speed manual?
#2 -Ford F750/650
Also, what other engine option are you guys planning for F 650/750 bases since CAT 7.2 is out?