Thread: Project LQ4 - V8 S10 - Sold.

Edit 1: When I started this thread, I had no idea where this motor was going. Since then it's been decided. Another S10 V8 swap. Figured I should put a picture of said truck in the first post. Here it is



Edit 2: The swap is done.



Continue reading for the full story!

Begin original post:

I've been searching all over, trying to find a decent deal on a more modern engine for my old truck. After a whole lot of failure, I finally found something. Ad was for a 2002 Chevy truck, with a stock photo of a burgundy 2500 Silverado. So I make the call, and ask what engine it has. Guy says, "Uh, 5.7... I think". I say to myself, Great! He has no idea what he has! When can I come see it? "Right now?" he says, and I'm off. I get there, do a whole lot of haggling, and a bunch of back and forth, long story short... I brought it home! Well, a tow truck brought it home.

Part of the back and forth was negotiating what parts they could take off to get to the price I could pay. So, off came the flares, brush guard, and hitch. I told them they could come back for the wheels and tires if they brought me some replacements.



Here's the real reason I worked so hard to make this deal happen:



That's right, 6 liters.



The plan is to pull the motor, trans, and all associated electronics. Then part out everything else. If I play my cards right, I could end up with a LQ4/4L80 combo for free.

What do you guys think?

very nice!

I had one of those in my yukon.. loved it! What is the old truck you want to put it in

Originally Posted by wowitsfast

I had one of those in my yukon.. loved it! What is the old truck you want to put it in

I was looking for something for my '84 K-10, but I think this setup will end up in something else. Yet to be determined. Still on the hunt for a late model GEN 2 5.7 from a truck or SUV.

Originally Posted by SgtMarshal

how much was it? junkyards sell the LQ4 alone for 1500, and the 4L80 for about 1000. depending on how much you paid, you might make out like a bandit.

I paid.....




























$1300

I did have to drop $140 to get it home. They had to drag it out from where it was sitting



The guy said it already had an aftermarket cam in it. I'll have to pull it apart to verify.

Oh, and I have HPTuners. I plan to really dive in on this one. With the GP, I was just kind of making small changes. IFR, fan control, code deletes...

Thats a good snag any day of the week. How many miles?

Originally Posted by SgtMarshal

if I remember right, a lot of people are using the LS3 heads and a hot cam to make that power.

a local guy turbocharged his LQ4 and made like 700 hp

I've been watching a lot of Sloppy Mechanics YouTube videos. He's got a turbo'd LQ4 in a Colorado. Can't remember what it put down for numbers, but it's impressive.

Originally Posted by idrivejunk

Thats a good snag any day of the week. How many miles?

A mere 155k! It's barely broken in.

Shift linkage or the cable is broken. Gotta get that fixed. Can't be crawling under it every time I have to move it.

The factory 317 heads are good enough, I wouldn't even touch them.

Hydroboost is for more braking power and easier steerings with pulling trailers. Many guys with performance built truck will add hydroboost to their trucks so they can have way more braking force compared to a stock master.

I'd still swap the rear end out, the G80 is still weak. A eaton posi or tru-trac is better.

And with the low miles I wouldn't even dig into it. Clean it up and inspect what you want but I'd leave the bottom end alone and spend money elsewhere.

Originally Posted by Fivefingerdeathpunch

The factory 317 heads are good enough, I wouldn't even touch them.

Probably just scrub the crud off. Don't even plan to pull them. Why tear something apart that's already working, right?

Originally Posted by Fivefingerdeathpunch

Hydroboost is for more braking power and easier steerings with pulling trailers. Many guys with performance built truck will add hydroboost to their trucks so they can have way more braking force compared to a stock master.

You think it's worth hanging on to?

Originally Posted by Fivefingerdeathpunch

I'd still swap the rear end out, the G80 is still weak. A eaton posi or tru-trac is better.

So it's not worth fighting over when I let the chassis go?

Originally Posted by Fivefingerdeathpunch

And with the low miles I wouldn't even dig into it. Clean it up and inspect what you want but I'd leave the bottom end alone and spend money elsewhere.

Like turbo...

The 14 bolt is stupid strong, just the stock diff inside it is the weak point. The G80 is only built to be a posi unit up to around 25 mph for getting moving in the snow/mud. It will still leave two black marks with alot of power but the way it turns itself into a posi unit is weak. The springs and spider gears aren't strong enough to handle alot of power and just grenade.

If want a rear end to handle alot of power, they switch to a 14 bolt and swap out the stock posi unit for one that is built to be a real posi all the time.

I guess I'll have to see what I end up getting. That will probably determine what I do.

I just want a vehicle that will do rolling burnouts.

Started playing around with the wiring today. Getting a game plan. Figured I'd pull the pcm and see if it worked with the off board I built for the GP. Turns out, it does!



Just killed the VATS for now...

OBD 2 Port pin #2

PCM Blue Plug #59

Saved for future reference

Been picking away at it, bit by bit. I'm pretty sure all the connections and fasteners are off. I'm also fairly certain the t-case will have to come off the trans before it will come out. That's going to be a challenge.



Otherwise, I think it's ready to come out! Still have to figure out where to hook the chain.

I think there is a threaded hole on the backside of one of the cylinder heads.