Differnece in VHO and vortec max

[Bad Bowtie]

Naaa...

[zippy]

The difference is bascily in the name. The VHO name came from the Vortec High Output badges put on the side of the truck. VHO wasn't the GM name for the truck, it was just what people started calling them. In 2006 when GM decided that the LQ9 should be offered in more than just a 2wd performance/touring based truck they came up with the name Vortec Max. All of the options just varied per year and model.

[huero626]

They are basically the same truck except the VHO always got the 20 inch Chevrolet Rims and the Vortec Max comes with the 17in or 20 in rims, because it is the same 6.0 engine. I think the Vortec Max looks better than the VHO because the Classic Vortec Max have the power dome hood.

[zippy]

They are basically the same truck except the VHO always got the 20 inch Chevrolet Rims and the Vortec Max comes with the 17in or 20 in rims, because it is the same 6.0 engine. I think the Vortec Max looks better than the VHO because the Classic Vortec Max have the power dome hood.

 

 

The reason for the hood is just because of the year. All 06' and 07' in that body style used that hood.

[383ss]

the same engine??

 

 

the VMax is an ALUMINUM 6.0L with L92/L76 heads and Active Fuel Management and Variable Valve Timing. not even close to the same motors.

 

 

Edit:

 

ok, I'm confused. apparently GM named two different motors the Vmax?? the old LQ9 in 06' and the new L76 in 07 are both named Vmax's??

Edited June 19, 2007 by 383ss (see edit history)

[nexttime68]

I have an [09/05] 06 crew cab AWD and 4X4 transfer whatever that code is with an LQ9 code. Opinions?

[zippy]

This is old, but the answers I'm seeing are embarrassing. The 2004 was only sold in a few states. If I recall correctly it was Texas, Oklahoma, and Louisianna (something to that effect). The 2005 was made to be ordered for anyone that wanted one. These were the equivalent of a normal Silverado 1500 except with the LQ9, 4L65E, 9.5" 14 bolt rear differential, and standard 20" wheels. In 2005 the Silverado 1500's were changed to a larger front brake assembly and drum brakes in the rear. The drums were chosen mainly because the parking brake with the rear disk brakes weren't cutting it. If you drive a 99-04 and then drive an 05 and up the parking brake is massively stronger. From memory only the hybrid and AWD SS in 2005 should have rear disk in the 1500's. In 2006 and 2007 the Vortec max was the next name used and it was the same idea. Based on the normal Silverado 1500 it was also the same LQ9 and 9.5" 14 bolt except with a 4L70E. The difference in the two transmissions (4L65E/4L70E) was the hardening used on the input and output shafts. The Vortec Max trucks was a massive fail from GM since it should have been available back in 1999. There isn't a reason that exists for the extreme laziness in building the 6.0L 1500 series. Someone at GM seemed to think the 6.0L was something special when really it's just a bigger engine than a 4.8L or 5.3L. There are times when not doing their job is more important to them. The main change that the Vortec Max brought on is that it was available in extended cab and crew cab as well as 2wd and 4wd. The 2005 was only available in 2wd and extended cab form. The 2007 Vortec Max in the next body style introduced the L76 6.0L which was an aluminum block engine with square port heads, VVT, DOD, etc... . This made the 2007 Vortec Max in the new body style more powerfull than the 2007 Silverado SS and Vortec Max in the previous body style.