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GMC-2002-Dmax said:
bowtiebob,


From what we "hear" the current engine is still being used until the supply runs out, then all the Duramax engines will be the new design.


Hp/Torque figures are not set in stone as of yet. I have heard 320 ish/560 ish
.


Redesigned valve covers and external plumbing for the fuel rails as well as a possible or probable redesign of the injector cup seals.


Time will tell.


GMC
I heard they are getting rid of the injector cups all together. The injectors will seal directly to the head at the combustion chamber.
 
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