So, ive posted here before lost the password new account. Long story short, father gave me his camaro (90 rs) that i thought was long gone. Seen it briefly as a kid and fell in love ever since. Father pasted after giving me the car and now i want to rebuild it. Managed to get a hold of an Lq9 6.0 cast iron from a 03 escalade. Going carburated. Anyone that has experience with this motor give me some tips on how their experience was with it? Or what i should look out for? Im currently taking everything off ofbthe block minus the heads and cleaning it up.

 

First piece of advice would be, DON'T. It'll cost you ALOT of money in the manifold, carb, ignition, and so forth, only to have a motor that probably won't run as good as it did stock much less any "better", and will cost EVEN MORE over the long term; like, every time you pull up to the pump. Just an altogether short-sighted step backwards into the knuckle-dragging stage of human development.

I'd recommend changing out the oil pump; not so much for the pump, as the O-ring on it. But since you're already taking it off might as well renew it. Go back with a Melling 10296. http://www.summitracing.com/parts/mel-10296/

Other than that, since you'll be having to buy headers anyway, might as well slide a good cam off into it. Check out Texas Speed. http://texas-speed.com/c-127-camshafts.aspx Look at their packages with the springs and all that. I'd suggest the 224/228 or 233/239 grind.

 

Ok, ok im still debating on the carb or efi but as far as the choice of block am I heading the right direction? I got the stock headers still but i planned on switching them out anyways. Original plan was to beat the **** out of it for a while then pull it back out and completely freshen it up. I have the money to go carb. And this'll be a weekend car. My civic haha is my daily. And thank you for your input seriously

 

Are you sure its a LQ9? thought the only way to know for sure was to look at the piston. Thats the only difference between that and the LQ4. The LQ4 is like 9:1 cr and the LQ9 is 10:1 or something like that. They say the LQ9 is the H.O version of the LQ4.

You are going to want more than just the engine out of the escilade. I'd get as much/everything you can in terms of what the engine needs to run.

Someday I'd like to do a ls base engine.

 

Im 99.7% sure i dug through yard after yard over the last year and a buddy of a buddy happened to have a wrecked 03 escalade. Its the HO 6000 vortec or whatever they call it now. I grabbed from intake to oil pan including harness justto be safe if i decided to stick with efi. Unfortunately i could tell if it was the 4L80E Awd trans or not. Stock by specs should run from 325-350hp and 360-380 trq.

 

Nice work! Yeah, I heard that the LQ9's are getting hard to find... or expensive.

 

Upgrade rod bolts
Port the heads
Oil pump
Camshaft
And have fun!

A carb style intake works fantastic on these engines and you can still have multiport injection and use the stock ECM. I would skip over the carb.

 

Im a little confused on what you mean. Run carb along with fuel injection? Remeber all i know is what ive done myself. That was only one other camaro with a 383 stroker

 

It means use whatever intake manifold you want but fit it with 8 fuel injectors and a throttle body. Don't use a carburetor.

Watch for hood clearance. Pretty much any single plane or dual plane intake manifold that would work well with the engine won't clear the hood. This is another good reason to stay with an LS1 style intake. But the results with a single plane manifold can be awesome if you're willing to wind up the engine to high rpm.

 

Um, where's he gonna mount the injectors on a carb manifold?

 

Where they are supposed to mount. See here:

http://www.jegs.com/i/Edelbrock/350/...e6ORoCdzjw_wcB

You can use a carb, or you can use a 90 degree elbow with throttle body at the end while using injectors.

 

Ah, I was unaware that existed. I've either looked for straight carb intakes or intakes specifically for the model of car I was building. Didn't know there were intakes that could be either or.

 

I've noticed a lot of FI cars seem to use this setup more than an LS intake. Probably because it starts to distribute the air from the middle instead of the front. That way the back 2 cylinders don't get starved for air, or something like that.

 

Makes sense, having an equal distance from air source to motor with the runners I'm sure has an effect close to the concept of equal length headers.

 

This is where im at now. Change out the gaskets minus the head gaskets.