Looking to buy 2006-07 Silverado, how to tell what size motor?

[Stopsign32v]

Ideally I would like a 6.0 with 4WD. How can you tell if it is a 4.8, 5.3, or 6.0?

[redvett]

6.0L would need to be a  #2500 or #3500 there were some 6.2L #1500 made

 

[CamGTP]

The 6.0 came in the Vortex Max trucks and Silverado SS trims. As well as the Denali versions on the 1500 just for reference.

 

The VIN number is going to tell you a lot and same with the sticker on the airbox that will have all the emissions related information. The engine displacement is also on that same sticker.

 

VIN code Z is a 5.3.

VIN code T is a 5.3.

VIN code B is a 5.3.

VIN code U and N are 6.0's.

 

VIN code V is a 4.8.

 

Just be warned that 95% of the 1500's from 2006-2007 are going to be 4.8's or 5.3's with the smaller engine mainly being in the more basic trucks with less options.

Edited September 12, 2020 by CamGTP

[Stopsign32v]

I've never been a truck person at all but looking to move to the coast and get some boats so looks like I need to be a truck guy now.

 

Looking into the differences of a 1500 and 2500 now. These things are confusing I tell you.

 

Oh and I kinda want to mod it to go fast. Maybe a cam, longtubes, who knows.

Edited September 12, 2020 by Stopsign32v

[TomDiesel]

On 9/12/2020 at 1:27 PM, CamGTP said:

The 6.0 came in the Vortex Max trucks and Silverado SS trims. As well as the Denali versions on the 1500 just for reference.

 

The VIN number is going to tell you a lot and same with the sticker on the airbox that will have all the emissions related information. The engine displacement is also on that same sticker.

 

VIN code Z is a 5.3.

VIN code T is a 5.3.

VIN code B is a 5.3.

VIN code U and N are 6.0's.

 

VIN code V is a 4.8.

 

Just be warned that 95% of the 1500's from 2006-2007 are going to be 4.8's or 5.3's with the smaller engine mainly being in the more basic trucks with less options.

By the way the engine code letter is the eighth digit of the VIN code

[kstruckcountry]

I've never been a truck person at all but looking to move to the coast and get some boats so looks like I need to be a truck guy now.
 
Looking into the differences of a 1500 and 2500 now. These things are confusing I tell you.
 
Oh and I kinda want to mod it to go fast. Maybe a cam, longtubes, who knows.

Fast and towing usually aren't friends. Long tubes generally lose low end (towing) torque, in fact.

The 2500s with the 6.0 and 4L80E are surprisingly good at towing. I have flogged them and it is remarkable how well they hold up. Something worth remembering is that an 8.1 liter with an Allison transmission was also offered.

The upside of the older pickups is that depending on area, the parts are very cheap and mechanics are very good at working on them. The GMT800 body parts are common (for example, a half ton Suburban uses the same door as a 1 ton dually pickup), which drives the prices down and makes parts easy to find.

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