6.6 gas

[gearheadesw]

So this new engine to come out in the summer to replace a tried and true combination, has anyone seen it, driven it, is it real? Nothing to be found anywhere, seems to me they're not testing this engine enough...

[DTB]

Should know more at the February reveal of the Fuglyrado HD

[gearheadesw]

February reveal, for an engine that's due out in the summer....Like I said not enough testing.

[DTB]

27 minutes ago, gearheadesw said:

February reveal, for an engine that's due out in the summer....Like I said not enough testing.

I’m sure GM has done testing on it. For all we know, they could have thrown it in a k2 truck and have been testing it under the radar for a couple years. 

[redwngr]

2 hours ago, gearheadesw said:

February reveal, for an engine that's due out in the summer....Like I said not enough testing.

Testing is before reveal, not after. 

 

 

[C/K Man]

Navistar has been testing it in medium duty trucks for well over a year.

[SilveradoX2]

GM is putting $22 million into the engine plant in Tennessee. Maybe the 6.6L will be made there. 

[greatmizzou]

I am definitely a potential user of it.   I’m fine with gas but might want a bit more oomph then the current 6.0 

 

My big reasoning with gas is that I’m familiar with maintenance on them.  I’m a diesel neophyte and would be starting from square 1.   Someone told me about glow plugs and I’m imagining little glow worms on plugs 

[Polo08816]

They better make the 10 speed auto available with the gas eventually.

[ApertureX]

7 hours ago, Polo08816 said:

They better make the 10 speed auto available with the gas eventually.

Considering that they just mated the 10-speed with the 6.2L in the 1500 series, it would only make sense to do the same for the HD gas engine with the HD 10-speed transmission.

[redwngr]

They have already said the 6.6 gas will have a 6 speed.

[MORSNO]

7 hours ago, ApertureX said:

Considering that they just mated the 10-speed with the 6.2L in the 1500 series, it would only make sense to do the same for the HD gas engine with the HD 10-speed transmission.

That is a light duty 10 speed, Ford uses it too.

[ApertureX]

11 hours ago, MORSNO said:

That is a light duty 10 speed, Ford uses it too.

Yes, but the Duramax at the GMC release had the HD 10 speed Allison Transmission attached to it. There is no reason that GM can't mate that transmission to the new gas.

 

17 hours ago, redwngr said:

They have already said the 6.6 gas will have a 6 speed.

This is speculation at this point, just like everything else that we 'know' about the new engine. Could be a 6, 8, or 10 speed transmission.

 

Hopefully, they will release some details at the Chicago Auto Show next week about the Chevy HD's that will give us information about the drive-trains since they will most likely be identical.

[redwngr]

Not sure I understand why they would even consider putting a transmission capable of handling 900+ ft-lb of torque behind an engine only capable of 1/2 that amount.

[Gagliano7]

Why not then you don't have to worry about the trans going. Plus towing and payload adds stress to the trans.