2006 suburban ltz 6.0 ?
Found a very clean 2006 awd 6.0 . Truck is so sharp. It has 140,000 miles. Is this the same 6.0 that is in the 2500 trucks? Anyone have or tow with this set up?
Forum Discussion
What happened to your other Suburban? I thought you had an 8.1L 2500 in the past. I haven't been around here very often though to remember.
The HP number for the 6.0L in the 1500 Suburban LTZ is 335 HP, which is consistent with the HP rating for the LQ4 truck motor also found in the 2500 Suburban of the same year. The heads are aluminum though, unlike the 6.0L truck motor of 1999 and 2000, which had cast iron heads.
The LTZ is unique in this respect, as GM's other two "kitchen sink" half ton rated luxury SUV's of the same year sported the higher HP LQ9 version (different heads, different pistons, higher compression ratio) of the 6.0L, rated at 345 HP, as found in the GMC Denali's and Cadillac Escalades.
Nevertheless, the LTZ still has the lighter duty NV149 AWD transfer case, rather than the NV246 part time auto trac transfer case. The transmission is the 4L60 (or 4L65) rather than the 4L80 (or 4L85), and the ring and pinion gears in the differential are smaller as well.
However, the rear suspension is 5 link coil, perhaps with air assist if so equipped, as opposed the the link springs of the 2500 Suburban.
There might be twin electric cooling fans for the 1500 LTZ, rather than an engine driven viscous fan clutch as found in the 2500. That could be one reason for the slight bump in horsepower in the LQ4 found in the 1500 LTZ, at 335 HP, versus the LQ4 found in the 2500 Suburban, at 325 HP.
Some folks consider the 2006 and earlier 6.0L engines as more desirable... since they predate the various displacement on demand, variable valve timing, and active fuel management schemes that GM began putting into small block truck and SUV engines beginning in 2007 model years. I suspect this was more of a concern during the teething pain phases of each of these technology implementations. Perhaps all of these concerns are mute in new engines today, but they were complained about a lot in 2007-2011, for whatever that may be worth, if anything.
The HP number for the 6.0L in the 1500 Suburban LTZ is 335 HP, which is consistent with the HP rating for the LQ4 truck motor also found in the 2500 Suburban of the same year. The heads are aluminum though, unlike the 6.0L truck motor of 1999 and 2000, which had cast iron heads.
The LTZ is unique in this respect, as GM's other two "kitchen sink" half ton rated luxury SUV's of the same year sported the higher HP LQ9 version (different heads, different pistons, higher compression ratio) of the 6.0L, rated at 345 HP, as found in the GMC Denali's and Cadillac Escalades.
Nevertheless, the LTZ still has the lighter duty NV149 AWD transfer case, rather than the NV246 part time auto trac transfer case. The transmission is the 4L60 (or 4L65) rather than the 4L80 (or 4L85), and the ring and pinion gears in the differential are smaller as well.
However, the rear suspension is 5 link coil, perhaps with air assist if so equipped, as opposed the the link springs of the 2500 Suburban.
There might be twin electric cooling fans for the 1500 LTZ, rather than an engine driven viscous fan clutch as found in the 2500. That could be one reason for the slight bump in horsepower in the LQ4 found in the 1500 LTZ, at 335 HP, versus the LQ4 found in the 2500 Suburban, at 325 HP.
Some folks consider the 2006 and earlier 6.0L engines as more desirable... since they predate the various displacement on demand, variable valve timing, and active fuel management schemes that GM began putting into small block truck and SUV engines beginning in 2007 model years. I suspect this was more of a concern during the teething pain phases of each of these technology implementations. Perhaps all of these concerns are mute in new engines today, but they were complained about a lot in 2007-2011, for whatever that may be worth, if anything.
