whoever swaped a lsx into their 3rd gen help me out, im about to go from a 305tbi 700r4 to a ls1 t56, i need all input

 

I never swapped the LS1 T56 into my 3rd gen yet but take a look at www.hawksthirdgenparts.com, www.fbodymotorsports.com, and also theres something about it on www.speartech.com. They tell you what needs to be dont to install the engine and transmission a little about the headers and things like that but not too much about all the little details. There's a good start for some info you are looking for.

 

this site is a good start for you.
www.thirdgen.org has some great info as well.
have you already purchased the setup?
by your post it doesnt seem that you have researched much.
what are are you having trouble with?

 

well mu buddie has a ls1 in his gta, and im getting the ls1t56 from a friend, and hawks 3rd gen is about 30 min from my house, the getting it bolted up and mechanically running isnt the problem, the thing im worried about is the wiring harness for the gauges, and engine and tranny, i know that hawks carrys a partial harness but does it come with a computer? thanks alot

 

If I lived even semi-close to hawks, I would pay him to do it.

 

well first of all the swap really isnt that bad, just takes time. If your afraid of the wiring harness then do yourself a favor and send your harness and the LS1 harness into speartech and have him do it. Trust me when i say it but its super easy once its all spliced together.

After having John at speartech do it for me all i had to do was plug all the sensors in and i was good to go. Just spend some time on here and ThirdGen.org and you'll be good to go.

Justin

 

Agree with most of what ThirdGenLS1 has to say. We just finished up the swap on an 88 GTA. Overall the wiring took us the longest to do time wise. I had very little wiring experience but with some time and patience we got it done. If budget isn't a big issue then I would recommend Speartech. Even though we did it ourselves he was kind enough to answer a few questions along the way.

Couple of things we overlooked that slowed us up towards the end. Get a non traction control throttle cable and throttle bracket for a 4th gen. You'll probably still need to adjust it some but it's close to being right. You'll need a 4th gen torque arm mount too. Used transmission I bought didn't have it and I thought the 3rd gen one would work until it was time to bolt it up.

Before you drop the motor in go ahead and remove the wiper motor assembly for clearance. It just takes a second and made things a little easier.

Power steering lines will work with some manipulation to rebend them. Go slowly and just keep test fitting. This is a lot easier if the reservoir is not on the pump.

On the wiring, if you do your own don't forget to find an OBDII connector to wire in. Do a spread sheet or some other kind of table first to match up the wires. It will help avoid having to un/re-do things as you go along. Take the C100 connector apart and try to clean it up a little while you're cleaning out the engine bay. Not sure what that stuff is they used but it's nasty. I'm sure it's for waterproofing but man it's like tar and it makes things nasty when you're working on your wiring and it's hard to see pin locations too. If you need a VATS by pass check www.lt1350.com, cheap, easy to install and does the job.

That's a few of the things that stick out about our swap. If you have any questions I'll be happy to help out if I can. Check the links/sites the others provided, that's where I gained a lot of knowledge and it helped in planning for the swap.

 

Photos of my swap: http://www.bubbadrift.com/album/thum...lbum=26&page=3

i should have more up soon, i'm expecting to fire it up tonight.

Wiring has been the most time consuming part, i've been doing it all myself modifying the factory harnesses

 

heres mine when i got it done

 

One other thing I thought of, get the Corvette fuel filter/regulator. Snap to instal and works like a champ. Check around on prices, there seems to be a pretty wide range ($20) on these according to where you buy.

 

well since hawks charges 10k for the swap includint labor and 5k just for the labor, i think that is a little out of the question, my friend has a ls1 in a 88 gta so we will have a car to go by, thanks guys

 

Where did you get your information on Bruce's prices? When I took my car down to him, he didn't quote even close to $5k for the labor on a straight-up conversion. Hell, even with a hell of a lot of mods I'm still going to be right around that figure on just the conversion! (Not counting resto work).

I think you better talk to Bruce in person, unless you already have and his quote is for a lot of custom work or something.

Adam