According to this web site HP/ Torque for 2006 is going to remain the same...Click link below

Maybe they will be making the change at mid year...2006.5?



http://www.lotpro.com/cars/2006/chevrolet/silverado_2500hd/options/

You will have to scroll down to the bottom to see the HP/Torque #'s

They are probably going off old data.

look at http://www.duramaxdiesel.com/

The Duramax still has 300HP according the official GM Duramax site! :D

I guess if GM dosen't know how much HP it's engines make I guess I can't trust other web sites either.

That would mean they went backwards! I thought the 05 Duramax has 305, or 310 hp.

They are probably going off old data.

look at http://www.duramaxdiesel.com/

The Duramax still has 300HP according the official GM Duramax site! :D

That would mean they went backwards! I thought the 05 Duramax has 305, or 310 hp.

310 HP & 605# Torque WITH the Allison 5-speed Tranny...