Difference between G8 L76 and Vortec Truck L76 engines

[majesticix]

Anyone know the differences between these two engines? I know the intake is different, but what about the heads, VVT, weight, etc...? I know the numbers put the Vortec at 367/375 HP/TQ.

Reason I ask if you haven't followed my previous thread is I'm thinking they are putting this engine in my car as a replacement. They had to order some parts to get this engine to fit into my car (oil pan, dipstick). Dealer told me the motor was the same when I asked if this was an L76. I just would like to be informed of any differences and make sure I am not getting inferior parts or added weight.

I'm hoping this is just a shortblock swap and they will use my intake/heads (couldn't use my oil pan cause it had a hole in it).

Thanks for any help you can provide.

[norm8332]

From what I read the truck one has VVT while the G8's doesn't.

[norm8332]

Be sure to read the DOC attachment.

[johnbell2]

Looks like there's hope if they use a Suburban L76?

[p71]

I am betting on it not working and them having more lick with an LS2...

[stonebreaker]

The truck heads use the smaller intake valve size.

[13 QTR]

Pretty positive the truck one is a iron block....so more weight.

[GRRRR8]

The truck is an iron block with VVT, so I doubt they are using a truck motor.

[sales@spencershids.com]

Be sure to read the DOC attachment.

according to the attatchment, it is an iron block. I wouldnt worry too much about it as long as your getting it done at a dealership. We have to swap oil pans ALL the time on new motors. The oil pan is the only difference between many engines. I have even gotten an Aveo motor and had to swap the flex plate off of that because it was different. Dont stress what they are doing until they are done. Most dealership techs are plenty competent enough to realize that if the one coming out is aluminum block, the one going in should be as well.

[ChipC]

Like was said, I am sure the techs will put in the correct engine. I would point out though that GM Powertrain specs for 2007, 2008, 2009 all indicate that the Truck L76 is aluminum and not iron. The previous gen 6.0L truck motors were iron. Here is the 2009 truck list:

http://media.gm.com/us/powertrain/en...09/09truck.htm

Chip