Do I have the correct engine in my 07 Yukon Denali?

[Gms1987]

Question: What’s the easiest way to identify the engine in my black 07 Yukon Denali without pulling it?

I’ve owned my white 07 Yukon Denali for 6 yrs. and it has a smooth engine valley cover. But the black 07 Yukon Denali I just bought has non-smooth engine valley cover. Is there any way to identify the engine without pulling it?

Thanks to all who help.

 

[donjetman]

Look in your glove box at the RPO codes. It will have "L92".

A few of the early 07 L92 had the non-smooth valley cover and all the other hardware (lifters, etc) for afm but it was turned off in the tune.

Most 07 L92 have the the smooth valley cover and none of the the afm hardware.

https://www.onallcylinders.com/2018...ormance-bore-stroke-cylinder-heads-cam-specs/

 

[rdezs]

2007 was quite the transition year. Date of manufacture, VIN number and RPO codes are all in play for that model year, to determine what you have. That applies to some other components as well when you're shopping for parts. Something to keep in mind.

 

[swathdiver]

Question: What’s the easiest way to identify the engine in my black 07 Yukon Denali without pulling it?

I’ve owned my white 07 Yukon Denali for 6 yrs. and it has a smooth engine valley cover. But the black 07 Yukon Denali I just bought has non-smooth engine valley cover. Is there any way to identify the engine without pulling it?

Thanks to all who help.

Both engines were originally L92s. The very earliest ones had AFM components but it was not active in the tune. These were manufactured before April 2006 if memory serves. These trucks began production in January 2006 and went on sale the same month.

Anyway, the black truck is probably older or someone swapped out the motor in the intervening 18+ years.

 

[Joseph Garcia]

Check this out:

For the L92 engine (a GM LS-based engine), the engine serial number is stamped or engraved on the engine block itself.
While the exact location can vary slightly depending on the specific model and year, common places to look for the stamped numbers include:
The front of the engine block.
The side of the engine block, potentially near the alternator.
A machined pad on the driver's side of the block, near where the bellhousing connects, potentially near the oil filter.

The serial number stamped on the engine block itself will contain a unique series of characters identifying the specific engine. This unique serial number is distinct from the L92 designation, which refers to the general engine type. The serial number can provide information such as the engine assembly plant and date of manufacture.

 

[Gms1987]

Both engines were originally L92s. The very earliest ones had AFM components but it was not active in the tune. These were manufactured before April 2006 if memory serves. These trucks began production in January 2006 and went on sale the same month.

Anyway, the black truck is probably older or someone swapped out the motor in the intervening 18+ years.

The engine was replaced 5-6 yrs ago and the mechanic said he added the non smooth valley cover, but can't remember why. Thanks for the feedback.

 

[swathdiver]

The engine was replaced 5-6 yrs ago and the mechanic said he added the non smooth valley cover, but can't remember why. Thanks for the feedback.

How are they holding up after all these years? Love those 6.2s!

 

[Gms1987]

How are they holding up after all these years? Love those 6.2s!

The white one is doing great, but I have yet to drive the black one. Looks like I'll have to pull the engine to get a definite answer.