my 2005 silverado ls1 build

Well it is now time for me to start the project i have been dreaming of since i was 14 years old. I finally stumbled across a deal that i couldn't pass up. here is a quick overview of the project... but first i would like to let you guys know... this project is my daily driver and will be seeing a good amount of track time.... but more driving around campus... i go to Texas Tech!!! Wreck EM'! anyways back to the project...

Vehicle: 2005 Silverado 1500, Regular Cab, Short Bed.

Current Engine: 4.3L v6

Current Modifications: McGaughy's 4/6 Spindle Drop, Painted stock rims, air intake and exhaust.

_______________

Swap information:

all below parts are out of a 2002 Ram Air T/A with only 36,000 miles on it.

Parts already acquired:

• 2002 ls1... complete from intake manifold to cat's
• 4l60E automatic transmission
• wiring harness
• AC Condensor
• Stock T/A Air box
• Misc Hard Lines and soft hoses
• computer
• almost anything you would see if you opened the hood of a stock ram air T/A

now i need some major input on what i still need... i thought i knew everything and turned out when i was ready... i didn't lol. :bang:

So far what i can think of are the below items

• long tubes
• frame mounts.... the engine mounts are still on the engine
• x pipe
• im not sure on the whole DBW or DBC throttle body situation
• upgraded fuel pump?
• fuel lines?
• air intake set up
• oil cooler
• truck tranny pan
• truck pick up tube
• Vette fuel filter/regulator

I know there are things i am still forgetting.. please chime in.

a few questions:

• With all the wiring harness situation.. should i use the T/A harness or take a truck harness and cut-and-wire to the injectors?
• can i run it on the f-body tune until i can afford a nice dyno tune? or would that be asking for trouble?!
• what throttle body type do i need to use in order for my cruise control...etc to work...?

and I am sure i still have more questions... i will update as they come to mind.


The following are pics of the truck the engine is going into... and also the engine and transmission

http://i29.photobucket.com/albums/c2...h_DSCN0719.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0720.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0721.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0722.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0723.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0724.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0725.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0726.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0727.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0728.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0729.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0681.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0689.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0657.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0664.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0663.jpg
http://i29.photobucket.com/albums/c2...h_DSCN0673.jpg


thanks for the help! and i cant wait to start the ball rolling on the dirty work!


Preston

damn preston you got your work cutout for you son!

Im not sure about running on the fbody tune..

haha thanks man... i got an insane deal and couldnt pass it up.... any input on the questions?

I'm not smart on things like this,yet, But I don't see the reason you couldn't run the Fbody tune. If you're only using the drivetrain components from the TA with the ECM from the TA you should be good. The engine won't know that it's in a truck.

That's just my theory.

you will need to get someone to switch the VIN in the PCM to match your truck, or a truck the same year as your's so that it will pass emissions testing. The rules state you can't put an older engine in a newer vehicle in an emissions county in Texas. The engine should pass a sniffer test without issue if you end up having to do one.

ya i was thinking.... hey just rip everything out and replace it with the ta stuff.... then i should be good right? just trying to make sure i have everything before i start

btw paint those center caps black.. make it look a whole lot better

im gonna get the rims powdercoated first..

Quote:

---

Originally Posted by Quik

this is what i would do. find the correct frame mounts and the motor mounts.

second i would find a correct year truck harness

3rd using that trans it doesnt have the black box or the longer gear selector shaft that trucks use

i would find correct harness and swap the pigtails onto it so you can always use car injectors.

if you have hte Fbody powersteering high pressure line it will screw right into the truck rack. i did the same.

the car pcm is going to be different then a 05 truck pcm. they have different color plugs and connectors

a car tune would fire it but it wont control everything properly as for guages and etc.

---

correct harness... as in an 05 v8 harness? and your saying dont use the f body tranny?

well my current 60 is about to take a ****... so i was gonna run that until i can get the f-body 60 rebuilt... is that possible?

yeah like quik said do it right the first time so you dont have to crawl back under there

ya i want to do everything right the first time... cuz i dont want much down time.. lol

The shifter lever is shorter on the f-body trans so you can't install the trans switch. I tried that already.

Thats interesting to know, I've installed two different LS1 transmissions in my trucks but never a truck transmission. Then project truck I'm working on now may give me fits because of the rod length but its nothing I can't modify to fit with the hot wrench. :thumb:

+1 on getting a truck harness and swapping injector plugs, the big question about the v6 - v8 swaps on the 03 up trucks is the drive by wire tb, i assume you can just leave it un-plugged, because you are gonna want to use the drive by cable tb like you have now on the v6, so you might be better off getting a harness for a 99-02 truck....good luck on the swap, its worth all the work, v6 - v8 will make you :)

I don't think you can use a DBW harness on a cable driven type engine because idle air control wiring isnt there.

Let's not use stupid terms for proven parts that work well. Secondly, there are three generations of DBW, that's why I try to ask so many questions about application before responding....even when I'm wrong. The earliest (2000-2001?) DBW systems have a mechanical IAC independent of the TB as well as an external TPS. Only the throttle blade is controlled by the motor on these and they use similar IAC and TPS parts to the same year DBC throttle bodies. The next Gen is like what I have....two TPS built into the T/B itself and no IAC. 3rd Gen mates to the newer style 4-bolt intake.

Quote:

---

Originally Posted by Quik

good point on the 3 different versions. but if he got the correct 05 harness then it would have the right TB right? this would be easiest way possible.

never have and never will be fond of the gay DBW. i like having control over my throttle now electronic controlled

---

if his truck is a v6 it has a dbc tb, and the 05 v8 harness will have a dbw tb connection, the ls1 tb should be dbc, thats y i think he needs a 99-02 dbc harness.

true...the green and red plugs will not interchange,...the blues however will for whatever reason

He already has the 2002 PCM for the LS1 to go with the DBC wiring harness. I'm sure he wants to continue using DBC, I know I would. I'm not sure on the emissions inspection if you can simply change the VIN in the 02 PCM to match the VIN on the truck to make it legal.

Don't mean to steal the tread, but I kinda have the same problem, but not as bad. If I wind up putting my 2004 GTO LS1 in my 2004 Silverado 4.8L, I'll have a throttle body problem. The LS1 has a cable tb, my Silverado has a dbw tb. Can I still use my stock Silverado computer and retune it and get a BBK or Corvette dbw tb. And if I'm correct, on the wiring, is the fuel injector pigtails the only thing I have to change?

Quote:

---

Originally Posted by v8sten

Don't mean to steal the tread, but I kinda have the same problem, but not as bad. If I wind up putting my 2004 GTO LS1 in my 2004 Silverado 4.8L, I'll have a throttle body problem. The LS1 has a cable tb, my Silverado has a dbw tb. Can I still use my stock Silverado computer and retune it and get a BBK or Corvette dbw tb. And if I'm correct, on the wiring, is the fuel injector pigtails the only thing I have to change?

---

a motor has no idea if it has a GayBW or a cable. so if you drop a ls1 in the truck then just use the trucks TB since its the same size anyways

back to the build lol

Quote:

---

Originally Posted by Quik

the trans will work but to use properly you will have to remove the pan and install the correct shaft. its the shaft the gear selector works off. the cars dont have a black box. the trucks do. so you need the longer shaft to use the black box. i had to swap shafts to get black box to work.

---

It is real easy to do. Shouldn't take but about 30 minutes.

Kazhdyj raz vozvrawajus' k vam snova, i ne razocharovyvajus'.

Poluchila pismo. Ja soglasna na obmen stat'jami.