68 5.3 ls twin turbo build
 

Well its been a year of driving and having fun after the ls swap,; but now its time for more power !
Started as a frame off build last year. 64, 000mi 2003 4l60 and 5.3 with a brian tooley 216/220-568 @110 cam with springs and push rods, 1 5/8 doug thorley headers, 9" ford posi 4.11 And all gaskets and seals of course ! Which i am now going to sell the headers,4l60e , custom intake and blazer intank fuel pump assy, If anyones Iinterested !!!
Now I am going with billet internals,log style manifolds, twin intercooled on3 70/68 t4 turbos, 4l80e . If anyone cares to follow the build, I will post some pics.

Re: 68 5.3 ls twin turbo build
 

what's better then one turbo :) two turbos

Re: 68 5.3 ls twin turbo build
 

How much are u asking for headers

Should be a fun drive with boost

Re: 68 5.3 ls twin turbo build
 

Headers $450 perfect condition, original box, and all paperwork!

Re: 68 5.3 ls twin turbo build
 

Got any idle clips?? That thing must sound like a Harley with that cam!

Re: 68 5.3 ls twin turbo build
 

I don't. It sounds pretty good ,but not as lopey as you would think due to the short duration.

Re: 68 5.3 ls twin turbo build
 

You could probably build the 60 to take the power of the turbos.

Re: 68 5.3 ls twin turbo build
 

You probably could but not for the price you could do it with an 80 for. Even then I would still consider the 60 to be on borrowed time. Outside of the size difference I don't think there really is a down side to an 80.

Re: 68 5.3 ls twin turbo build
 

I agree, I don't believe the 60 would last very long, aand will make someone a really nice transmission with only sixty four thousand miles on it. I just want the added possible insurance with the 80.
I sent an email to this site to possibly move this thread over to the LSX swap section, with no reply ! ? Any Iinput on this ?

Re: 68 5.3 ls twin turbo build
 

Just PM one of the mods

Re: 68 5.3 ls twin turbo build
 

watching this... im hoping to have my single turbo done this year...

Re: 68 5.3 ls twin turbo build
 

Slick truck 69trk !

Re: 68 5.3 ls twin turbo build
 

So why not just flip the headers and point them upwards then make new flanges that have your wastegates mounted right to them. Log manifolds are for boats and foreign cars with no room. You will hurt your performance doing that unless of course you plan to run low boost like 5psi.

Re: 68 5.3 ls twin turbo build
 

Nice looking truck. It sounds like a cool build. If interested in shooting the stuff.. Pm me and I will send you my number. I'd like to talk to you about the build.

Re: 68 5.3 ls twin turbo build
 

Interested to see how the on3 turbos do, will definately be watching this thread.

Re: 68 5.3 ls twin turbo build
 

Been busy building customers promod motor. Will be starting back soon, and will post some more build pics. Thanks for the interest !

Re: 68 5.3 ls twin turbo build
 

Some update pics. Decided to run headers instead of logs after all.
So the turbos are mocked up, and the intercooler also. Slowly but surely making progress !

Re: 68 5.3 ls twin turbo build
 

Nothing wrong with slow progress, there is no time limit on building a hot rod.

Re: 68 5.3 ls twin turbo build
 

Looking good! I have the same headers to use on my build.

Re: 68 5.3 ls twin turbo build
 

Looks good. Following along.

Might as well do an 80E right away. A stock or even "built" 4L60E is no match for a turbo LS on sticky tires in a heavy truck.

I know this for fact. lol.

Re: 68 5.3 ls twin turbo build
 

I have an 80 E, just need to find the time and money to build it! Thanks for the interest in my build !

Re: 68 5.3 ls twin turbo build
 

So I guess we will be seeing you on Street Outlaws next season?

Re: 68 5.3 ls twin turbo build
 

Looks good... im looking into a rear mount setup. .

Re: 68 5.3 ls twin turbo build
 

Street outlaws are badass !
I have alot of other projects going on, so its going slow !

Re: 68 5.3 ls twin turbo build
 

The only person worth actually believing on that show is Lutz (which is why he doesn't say much). Legit 6 second car.
Can't call a show Street Outlaws when you pull the car off a trailer to run. Cops aren't that stupid.

The turbo 5.3 is cool tho.

Re: 68 5.3 ls twin turbo build
 

I'm inclined to agree with you on this one.

Re: 68 5.3 ls twin turbo build
 

LOL, you guys must not have ever heard of OKC cash days.

Re: 68 5.3 ls twin turbo build
 

I've never been to a street race where Hwy Patrol shut down the road for me.

Re: 68 5.3 ls twin turbo build
 

Ya. The girl from tulsa Kayle morton with the mustang stated that its alot of B.S. tv time, but the actual race is real !

Re: 68 5.3 ls twin turbo build
 

Im in for the ride! I have a few questions about your gauge cluster setup-I am using the same lmc cluster you posted about with a 2009 ly6/6l90. 1 what did you hookup to get your speedo/tach to work? I hooked up the wire labeled tach from my harness guy and I have nothing. I checked it with a test light and am not getting any feed while it is running. I assume he used the wrong pin but he won't return my calls...

2 what did you hook up to get the cluster to dim?

Thanks for the info and im looking forward to the build!

Re: 68 5.3 ls twin turbo build
 

Hello sir, did you just flip the headers that were on already or are they a certain brand?

If anyone knows please help me, this is very interesting...

Re: 68 5.3 ls twin turbo build
 

I decided to use the cx racing turbo headers for the ls swap supra and gto.

Re: 68 5.3 ls twin turbo build
 

Changed the turbos position, and got most of the piping done.aldo picked up a 6.0 to build.

Re: 68 5.3 ls twin turbo build
 

All Ive got to say is! It looks Badass!!!

Re: 68 5.3 ls twin turbo build
 

I'm following this one.

Re: 68 5.3 ls twin turbo build
 

what turbos are you using? I'm building a turbo 5.3. still haven't decide if it will be single or twin

Re: 68 5.3 ls twin turbo build
 

Twin on3 70mm.
If I was to do it again, I would do one 76 to 80mm alot less work !

Re: 68 5.3 ls twin turbo build
 

If interested, might sell my complete stainless twin turbo ,intercooled setup ?

Re: 68 5.3 ls twin turbo build
 

what kinda price would you be asking? do i have to modify the truck at all and is it complete?

Re: 68 5.3 ls twin turbo build
 

watching this too..