LQ4 6.0L LS with 243 heads, running a BTR truck Norris cam.

[@dannykim6218]

That thing sounds amazing , definitely my next bump stick

[@Greymancustomz]

I would recommend it for sure.

[@joncpeters]

Will you do a video on swapping the ls oil pan to an “F-body” style? Do you need to swap pans to put this one in the truck?

[@Greymancustomz]

I can do that the next time I get one to put on. I just did one on the 4.8L. The stock truck pan will work unless you have a lowered truck. My GMT400 chassis requires a lower pan since the truck pan hangs below the frame, same on the c10 chassis

[@richardtho4932]

What carb you running that with ?

[@Greymancustomz]

It’s a 650 Holley brawler with electric choke removed.

[@garthkey]

Listen to those horses run free

[@Greymancustomz]

I love how it sounds. I still have the cam and I’m looking to build an engine for one of my personal trucks with it.

[@jarianbrass5021]

Do you milled those down or they are stock?

[@Greymancustomz]

@@jarianbrass5021stock

[@DaBundle]

That shit sounds ROWDY AF!!!!😮 💪🏼 is going to HOOK & BOOK for sure Just earn yourself a Sub Brother☝🏼

[@Greymancustomz]

Thank you. I’m looking forward to getting it installed into the truck. More video on the engine and the 4wd 56 Chevy truck it’s going in soon.

[@DaBundle]

@@Greymancustomz nice going to do the same on my wife’s 99 2dr Tahoe 4x4

[@Greymancustomz]

@@DaBundle3k stall converter ?

[@Edfloo]

Question I’m doing a lq9 with my 243 heads with a stage 2 btr na cam kit with upgraded rocker and ls7 lifters and double roller timing chain think it’s should run good ?

[@Greymancustomz]

With a good tune I’d think so.

[@forged_billions2]

Is that cam pretty good ? I’m build the same combo with supercharger

[@Greymancustomz]

It sounds really good but I haven’t ran it in a vehicle yet.

[@tommyjm83]

Once you do this what's the tune setting on the msd box you set it to 6014 box? And any tuning on the carb or no?

[@Greymancustomz]

MSD box is set to truck. Since I’m only running the engine to test vitals, I didn’t adjust anything but idle on the carb.

[@adambell7464]

I’m running an LQ4 with 862 heads, longtubes, but mild cam in a 69 F body. With a SS2 cam and a good tune, what power numbers do you think I could expect?

[@Greymancustomz]

I think you would be 350-380 but that’s because your lacking a little compression compared to the ls2 that is rated for 400hp

[@LeeHendo]

You should run a Summit Single Plane Cam 240/252 .569/.569 106 (with 1.7 rockers, 1.8 rockers are equal to 244/256 .604/.604 106 at the valve)With dished pistons and 317 heads a LQ4 has 9.4:1 compression, using 706/862 heads drops 10cc of chamber volume, raises compression to 10.6:1 with 0.051" head gaskets, if you use a 0.027" head gasket that will raise your compression 0.7:1 for 11.3:1. Other wise flat top 4" pistons will also add 0.7:1. The 240/252 is like the grown up version of the Truck Norris. You'll get better results if you port the heads and possibly if you have the intake valves upped to 2", you can buy remanned 862/706 heads with 2" intakes for like $600-700 a pair on eBay. You'll only lose 9hp peak for 500rpm upstairs with the smaller valves, you'll gain 10-15tq for 1200-1500 rpm in the middle with the smaller valves on a 6.0 according to Holdner's testing, without heads ported upping valve size the point of diminishing returns on cam duration may be reached earlier. I have wrestled for a long time myself trying to decide the best plan of action for an LQ4 I have and if I want to use a set of 706s or 241s(milled down to at least 64cc), dished or flat top, cams, intakes, head gaskets, in a relatively heavy 2004 GTO with tall 3.46 gears and a T-56. Those are some of the considerations I worked out.

[@duvalmontess]

What head gasket size did you run?

[@Greymancustomz]

I’m running the stock OEM head gaskets

[@Mach_bro]

What lift cam is that and what springs are you running

[@Greymancustomz]

Look up BTR truck Norris cam, I also used BTR valve springs.

[@10krms54]

How can u tell from a lq4 n lq9 is there markings on blocks

[@Greymancustomz]

Dished pistons in the LQ4 and flat top pistons in the LQ9

[@ArkArmy90]

How much power would something like this make ?

[@Greymancustomz]

Haven’t dyno tested it yet. I’m going to build another one since I sold this one

[@ArkArmy90]

@@Greymancustomz ok cool let us know when you do because if this makes good enough power then no need for ls3 then

[@Greymancustomz]

For the budget I think this is going to be a good route. Maybe add on some ls3 heads.

[@ArkArmy90]

@@Greymancustomz very well might look for a 6.0 then thank you for the idea

[@dannykim6218]

500 some change

[@donalddennis2644]

Is that a stock bottom end?

[@Greymancustomz]

Yes

[@donalddennis2644]

@@GreymancustomzWow! Sounds amazing!

[@donalddennis2644]

@@Greymancustomzwhat intake manifold and carb are you running?

[@Greymancustomz]

@@donalddennis2644 I’m pretty happy with it

[@Greymancustomz]

@@donalddennis2644 Holley LS intake with a Holley brawler carburetor 650cfm

[@kongzfitnesss3892]

What cam is it?

[@Greymancustomz]

BTR truck Norris

[@obsjosee]

I also got a lq4 with some 243 ported heads, I still don’t know what cam to get

[@Greymancustomz]

Depends what your going to be using the vehicle for. I always go with a Brian Tooley truck stage 2 cam since it sounds good and doesn’t require a torque converter. But one of the trucks I’m building will be getting a truck Norris cam from Brian tooley racing and it will have a 3k stall converter.

[@obsjosee]

@@Greymancustomz it’s a 91 k1500, I wanna make it into a street truck, I don’t mind getting a bigger stall. I’ve also got some 1 7/8 long tube headers and a fast lsxr intake, I’m trying to push 400 whp

[@Greymancustomz]

May want to look into a turbo or super charger

[@obsjosee]

@@Greymancustomz I was thinking about a turbo but that’s gonna be till later on, I wanna build a n/a truck

[@Greymancustomz]

@@obsjosee stroker kit and some heads.

[@jayball1324]

What kind of carb

[@Greymancustomz]

Holley brawler 650 with electric choke that has been removed. Plenty of CFM to run this 6.0 in the truck it’s suppose to go into. But I’m going to be putting EFI back on it for final install

[@Millie.1965]

How would you recommend cleaning it? My LQ4 is filthy. All accessories still on

[@Greymancustomz]

Steam cleaner for sure. If you don’t have one then spray simple green on it and rinse it off. Use a plastic brush to clean the hard to clean spots. Should look real good after

[@Millie.1965]

@@Greymancustomz Forsure. Any risk of messing up any connections? Not connected to a battery but hopefully nothing gets into where it shouldnt

[@Greymancustomz]

@@Millie.1965 I remove the intake so the only sensors that’s are left is cam, crank, and oil pressure. You can put dialectic grease in them or just don’t spray directly. You can clean them with connector cleaner after also. But you don’t want water staying in them.

[@Millie.1965]

@@Greymancustomz Good points Ill clean mine up

[@Detailonthemove]

use cheap oven cleaner from dollar general. works almost twice as good as purple power or simple green