LSx questions/info

**wick** · 01-23-2015, 08:44 AM

I figured now would be a good time to gather some more information. I'm building an LS powered '68 Chevy C-10 truck. Going with an 02 LSx for obvious reasons. Stupid power can be had and very simple to get also. Engine is the LQ4 truck 6.0 with a 4L80e trans. I have no idea on most of th stuff with these. I know caddy heads are supposed to be good but I think I read you need the intake also due to bolt pattern. I have drive by cable and would like to keep that although I wouldn't be opposed to doing DBW.
I guess what I'm looking at here is the fellas with the ls cars, toss in some info for what has worked for you and power builders without breaking the bank.
Doing the harness is basically the easy part as its pretty much a stand alone as it is. Eliminate some wires, shorten and lengthen some. Add an LED for the engine light and presto!

**wick** · 01-23-2015, 08:48 AM

One of the reasons I'm wanting to keep the drive by cable is the fact that I have a complete and running truck right now. I actually drive it daily. Has a brand spanking new transmission also. I believe if I go with the other setup I need the according harness. Their easy to come by so not much of a big deal there. Mater was saying something about the GM hot cam kit also. More than likely will do that.

**SK360** · 01-23-2015, 08:58 AM

I ran L92/LS3 heads on my 6.0 in my GTO, got them for $450 for the pair and have to pair them with a LS3/L76 intake due to the square ports which you can find for $2-300. With a custom ground cam and the heads milled 0.030 that motor put down 450rwhp/419rwtq through a Stalled 4L60.

**wick** · 01-23-2015, 09:10 AM

Where did the cam come from? That's pretty good numbers also! Would I be able to retain the cable throttle body?

**wick** · 01-23-2015, 09:12 AM

Which exhaust ports are on those heads also? That's going to play a part in the header selection. As it stands right now, if I leave the LQ4, I'm looking at about $600+ for swap headers. I think the trailblazer SS manifolds fit with a little soft frame bending with a torch and crescent wrench. Need about 3/4" clearance on the driver side.

**TooFast98Cobra** · 01-23-2015, 09:19 AM

Little john motorsports is the only guy I would use when choosing a cam rob.

**TooFast98Cobra** · 01-23-2015, 09:21 AM

http://www.liljohnsmotorsports.com/

**wick** · 01-23-2015, 09:22 AM

Where's that at Bill? I'm open to anything right now. I just saw a place called Texas motorsports that has a nice offering on package deals. I never heard of them though.

**SK360** · 01-23-2015, 09:26 AM

Got the cam from Virginia Speed when Ed Hutchins was still there. It was a 227/239 .614/.624 114+5, not a world beater but wanted something civil with the auto and you don't get a lot of intake valve clearance with the L92/LS3 heads to run a longer duration without flycutting the pistons. Brian Tooley Racing is a good place to start for LS Cam/Engine/Valvetrain stuff.

Graphs with locked converter vs unlocked. Converter kept releasing up top or it prob would have made 455.. lol.

The LS3/L76 intake is made for a 90mm throttle body but cable/dbw doesn't matter.

As far as exhaust ports, not sure... the same headers I used with my stock LS2 heads bolted right up. Might not be the best option but they run well for a budget head setup.

**TooFast98Cobra** · 01-23-2015, 09:35 AM

Also for a local guy who knows his "LS" stuff i'd turn to George . He has that orange notch in the 8's and it junk yard/eBay stuff .

**TooFast98Cobra** · 01-23-2015, 09:37 AM

I wouldn't mind putting an ls2 in my 93 cobra just to piss off the ford redneck worshipers. Lol

**wick** · 01-23-2015, 09:37 AM

I like it.
I need to find out more options on headers and such here. I could go with the hooker cast ones that basically resemble a log type.

**wick** · 01-23-2015, 09:38 AM

Originally Posted by TooFast98Cobra

Also for a local guy who knows his "LS" stuff i'd turn to George . He has that orange notch in the 8's and it junk yard/eBay stuff .

Conroy? Haven't talked to him since I got his blue blazer from him.

**wick** · 01-23-2015, 09:39 AM

Originally Posted by TooFast98Cobra

I wouldn't mind putting an ls2 in my 93 cobra just to piss off the ford redneck worshipers. Lol

Hahaha.
You still have that big block in the corner of the office?

**TooFast98Cobra** · 01-23-2015, 09:41 AM

Originally Posted by wick

Hahaha.
You still have that big block in the corner of the office?

Lol I wish . That would be perfect to put in there .

**pwtmxracing** · 01-23-2015, 09:55 AM

Yeah lil john is a top notch he knows his stuff ....

**RUTHLESS** · 01-23-2015, 10:53 AM

Give the guys at Street Lethal a call. They are building all engines in house now, even GMs so they should be able to point you in the right direction.