I recently got a hold of a LS1 and T56 and most other goodies out of the 4th gen (99 camaro)
I will post my progress here as I go along. Im planning on starting the swap early spring so basically now im just trying to get all the info I can on it so i can prepare by getting everything i need to do it right the first time.
I've searched and gone throughtthe guides and im am basically asking if there is anything I should know that isnt normally covered in the guides and pointer from members who have done it.
I'll make a list of parts i have and parts i know i still need later.
thanks.

 

Your list of parts would be helpful, along with what you intend to keep (AC, PS, 3rd gen pedals/hydraulics, etc.).

 

ok here we go

Parts i have for the 99 camaro:
Engine and trans (duh)
LS1 driveshaft
dash and cluster
ECU
All of the wiring intact
Clutch hydraulics
gas tank
gas lines
radiator and fans
torque arm

Parts i know i will need:
Motor mounts
trans crossmember
hoses

As far as accessories go i am just keeping P/S and the alternator. NO A/C

like i said im am basically asking if there is anything I should know that isnt normally covered in the guides and pointer from members who have done it

also any other parts i might need to but or take from the 99 camaro

thanks.

 

Sounds pretty good.

You'll need a throttle cable as well. If the '99 doesn't have traction control, you should be able to use its cable.

Were you going to use the LS1 exhaust manifolds, or get headers? The '99 exhaust system won't fit a 3rd gen.

 

im going to tack the cable and use the manifold and fab an exhaust to fit off those, im am also using my 3rd gen pedals

 

I also have a 4th gen 95 firebird dash in my car so i an going to see if i can just take the cluster from the 99 camaro along with the wiring to it and be able to hook it all up

 

I thought the stock fbody manifolds would work on a 3rd gen? Or do I have to rethink my plan of attack now?

 

i think he ment the WHOLE exhaust...im pretty sure i can use the manifords and make custom piping off of those

 

Stock F-body manifolds are the most common type of exhaust used

 

whew. I thought for some reason I missed something or didn't take the right notes. all is well, so I'll stop hijacking thread, sorry

 

haha dont worry your question helped a little bit because at this point im just trying to get all the info i can before i do the swap so i can mess up as little as possible

 

I meant the exhaust after the manifolds to the cat. Sorry, should have been more specific.

 

i have a question regarding the pedals/hydraulics. Can i just use my 3rd gen pedals and T5 master cyl? or is it better/easier to swap the 4th gen pedals and T56 master cyl in?

also if i use the 4th gen pedals can i use its gas pedal of do i have to cut it off?

and how well do the 4th gen fuel lines work?

 

i got another question. the PCM i have is from a 2000-2003 corvette with service number 12200411. will that work with the 1999 camaro LS1?

 

Yes

0411 PCMs are the most universally sought after service number and work with 99-04 LS1 harnesses

 

Thank you for the good news!

now just to get theses answers
and I will be well on my way

 

About the pedals
https://www.thirdgen.org/forums/ltx-...en-vs-4th.html

According to shr00m, the 4th gen fuel lines are compatible, but why bother? Diagrams and pictures of how to modify and reuse most of the 3rd gen lines are readily available on the forum

Jon ~

 

I used the 4th gen lines because it was easy to swap out, but I also had a v6....
Also use the master slave cylinder from the 4th gen. From what I have read sometimes the 3rd gen does not apply enough force for the clutch to engage.
When putting in the LS1 and T56, it takes a lot of persuasion but it does eventually go in and fits like a (snug) glove. Make sure to have PB blaster for those stubborn bolts. Print all wiring schematics. Team third gen helped a lot with there walkthroughs.
Make sure the VATS is tuned out and the PCM has been tuned for the codes that need to be deleted or your engine will not run properly and you will spend crazy amounts of time chasing a ghost.
Make sure wiring is properly installed and away from any heat source.
There are a lot of little things that go wrong in every project but just keep at it and make sure when you throw a wrench its in the opposite direction of your car!!
I finally am getting mine out of the shop and cant wait to drive it! From what I hear its worth it all in the end when you see the look of your first victim!!
We should meet up once you are done since you live close....

Good Luck!

 

It seems time you did it the way I was hoping to be about to do it.
So i can just use the 4th gen master cyl on the 3rd gen pedals by just replacing that little pin on the clutch pedal with the 4th gen pin.
Are the 4th gen fuel lines a direct swap?
I know I have to get the PCM tuned (Get rid of VATS, CAGS, rear o2's, AIR, EGR, etc) since you are close where did you get that done? Or am I just going to have to sent my PCM out for a tune?
Meeting up sounds cool tho im not going to even start working on it till the weather warms up and me and some people started a car club over the summer so we are always looking for members near us.

I am also interested in making it speed density and removing the MAF. Is that just done it the tune as well?

 

SD swap requires a tune. Do yourself a favor and leave the MAF wiring hidden somewhere in case you decide to switch back

 

I'm going to try the T5 Master with a T56. The 4th gen Hydraulic line will fit the t5 master with a little modification to the fitting. Both Masters look to be about the same size so I thought i'd give it a try sence the t56 master i have is broken.

 

So thats all it is is a tune? good idea to leave the wiring for it
I think im going to ask you about anything electrical related, you seem to know it quite well.
Anyway how is the wiring from the PCM to the 99 gauge cluster? Reason Im asking is that I intend on using the 99 cluster since I have a 95 firebird dash and I know it just bolts in and the connector just clips in as well.
Im going to use the 4th gen master and just replace the pin on my pedals. That seems like its one of the best ways to do it.
From what I've read the t5 master does not push enough fluid

 

another thing i thought of is the accessory belt, what belt do i use if the only thing on it is the water pump, alternator, and power steering?

 

Measure the length with the tensioner pulled using a string or tailors tape. Belt PNs generally correspond to their length and rib count

http://www.goodyearep.com/productsdetail.aspx?id=3128

 

I wasn't to clear on that last post ooops lol. I figured that on the belt but i was mainly thinking about how the pulleys and belt routed.

 

Best i could find

http://www.ls1tech.com/forums/new-ls...ng-delete.html

 

nice that helps alot, thanks for that

 

well i will be bringing the 99 Z28 home in about a week to take my pickin's out.
Any advice to make the removal easier?

 

things got slowed down a bit so its going to be another week or so till I get the engine.
Anyway i have a quick question about sensors.

What sensors can i get rid of?
What sensors do i need to keep?

I've decided to keep the MAF on and I am also using the 99 camaro gauge cluster

 

Keep pretty much all of the sensors

Rear O2s, oil level, coolant level etc small things can go

 

well got alot of work done today(took advantage of it being so nice out)
dropped the engine, trans gas tank, and some more stuff,
im going to take the dash out and get everything as prepped as i can soon
heres some pics

 

Very nice, maybe I can come out and help sometime :P MAybe when I come to get that diff!

 

Finally got the donor car home. Its a 99 Camaro Z28 LS1/T56
Let the fun begin!!
Oh JTNKTZ he said $175 for the rear, I have the car now so let me know what you want to do.

And the pics!

 

Subscribed

 

Update.
Fuel tank
fuel lines
radiator
engine
transmission
ARE ALL OUT.

still working on the wire harness and a few other things.
going to clean the engine up and my engine bay

pics for now

 

Got the wiring and seats all out...now the fun part of wiring begins

I will be using the LS1 gauge cluster since I have already done a 4th gen firebird dash swap and it will bolt right in.

I took the wiring from the PCM to the dash as well as the wiring from the dash and PCM to the gas tank.

more pics

 

What was wrong with the donor? Looked pretty good to be stripped

 

Nothing was really wrong with it from what I could see, it did nook like its been hit on the passenger side in the front though.
The owner is turning it into a glorified track car and I really don't know what engine/trans set up he is going to go with. I gave him a 350 SBC 4 bolt main I had sitting around lol.

It really is a shame to tear it apart I guess. I even drove it from his house to mine which is like 40 miles and it drove just fine. But way I'm happy that I'm finally able to get an LS1 for my car and thats what I've always wanted to do with it so I can't complain lol.

 

And now THE FUN PART...WIRING.
Its a pain but its not as bad as I thought it would be. Getting the conduit and tape off SUCKS, its sticky and not fun wo work with at all. I got a bunch of 5 - 10 pin connectors that im going to use to make it so i can just plug stuff in when i install it.
Anyway im not done with the harness yet but its getting there.

 

I have a question on the PCM pinouts
The PCM in the 99 camaro i pulled everything from is a 9354896
The PCM from the 2001 vette i am using 12200411
I looked up the pinouts for both cars and they are different.
My question is will i have to re-pin the PCM connectors or can that be changed in the tune?
Also is there anything else i should be worried about as far as the harness goes?

 

Set your pinout to the 99-02 Fbody. Corvettes used a few minor functions the Fbody's didnt and also had DBW

If you compare the critical circuits like crank, cam, coils, injectors etc you will see they are identical

 

thanks alot man

 

Will it see the TPS and other things the vette did not use?

 

You need to flash a Fbody tune in the PCM

From a wiring standpoint, it needs to be made into a Fbody harness

 

ok thats what i was hoping for

 

as far as the gas tank wiring goes im using the ls1 tank.
what wire do i need to keep if im not running evap, erg, air, or any of that?

 

Sender is signal and ground. Pump is power and ground. Grounds can be spliced together for a 3 wire hookup like the 3rd gen had

 

so i dont need the pressure sensor or the evap thing?

 

No, but they need to be tuned out of the PCM.

Leave the evap hardware on the tank and it'll still provide the fumes and venting functions.

 

ok cool so all i need is the pump power and ground and the sender wires. thats good.

Im doing a mail order tune so i'll have that taken out as well