Piston6

Hey Everyone, we are a high school auto shop and are trying to figure out exactly what we have before we proceed with a project.
It is a 6.0 liter, aluminum block, has the higher intake, has a cam sensor in the front cover and cathedral style intake ports. We have looked into some different configurations on line and can't figure out if we have a truck engine (pretty sure they are iron blocks?) or something else? Any help to get us started would be appreciated!


We are new to this LS game but are really looking forward to getting into it!
Thanks!

N20zuki

Sounds like a Trailblazer SS LS2.

JoeNova

AFM Valley cover?

ND2RACE

How do you know it's a 6.0?

cookseyb

It's stamped on the back of the block, what kind of intake? If it's the truck intake its a trailblazer SS. Good find! Should have 243-799 heads or like the one I bought one of each!

Piston6

How can we tell?

JoeNova

It doesn't have to be a TBSS engine. If it has a DoD/AFM valley cover it could very well be one of the hybrid engines like the LZ1.

JoeNova

DoD cover will have veins in it.
http://www.nathanbittinger.com/fiero...4/DCP03238.jpg

DoD cover is on the left.

Piston6

Yes, it definitely has that cover with the veins on it.

1FastBrick

iTrader: (16)

Sounds like an L76 if it's from a truck.

JoeNova

He did say cathedral ports.

JoeNova

If it is indeed an aluminum 6.0 with cathedral ports and DoD, then it is an LFA. If it also has VVT, it is an LZ1. They were both hybrid engines. Basically, displacement on demand hybrid versions of the LS2.

Delete the DoD and you basically have a TBSS LS2.

1FastBrick

iTrader: (16)

But this is the same guy that is new and is asking us to help him I.D. it...

Without casting numbers or pictures of said engine it's pure speculation.

12568952 Is likely the casting number of the Aluminum 6.0 block

We would need the head casting numbers to go from there.

1FastBrick

iTrader: (16)

I believe you could be correct on it being 1 of those 2 engine possibilities.

LZ1 or LFA depending on how it's equipped.

I have never seen or worked on one of those Hybrid combo's myself.

Piston6

Thanks for the info! That is definitely the block number. I will get the head numbers and post them to hopefully get this narrowed down! Sounds like we may have something good?

JoeNova

I've owned an LFA before.
Remove the heads, replace the lifters with standard LS7 lifters, and then replace the valley cover with a non-DoD valley cover.

At that point, you have an LS2 from a TBSS.

Piston6

Thanks Joe! What would be the benefit of doing the cover and lifters swap over leaving it the way it is?


Thanks again for your help!

JoeNova

The DoD lifters are very prone to failure, and the valley cover is a dead giveaway for them.

Piston6

Can I ask you now what you would recommend as a set up for this? Basically 1) what transmission?
2) would it be cheaper to put a carb and intake on it or run a stand alone type computer system?


Thanks again Joe for all of your help and direction!!

Piston6

Hey again Folks. Is there a recommended way to run these engines? Basically is there a choice of control system we can buy to run it or is a carb and intake a better choice? I have looked around for a donor vehicle but haven't had much luck. Has there been any success with an aftermarket computer and harness system?
Also what transmission is a good choice to bolt up to it?


Thanks again!