Cchris1109

iTrader: (11)

Curious, if i could swap in an LS6 in my LT1 TA without much problem, i mean besides from a new chip, engine, some misc things, wouldnt it be fun and of medium difficulty

omaha stylee

new wiring harness, k member, headers, trans

Cchris1109

iTrader: (11)

why would i need a new transmission?????

slowmofo

iTrader: (6)

the ls1's tranny is aliitle different. Different bell housing and different spline count on the input shaft also i believe

383LT1S10

Spline count doesn't make a difference on what engine..only matters which clutch disc you use. As for the bellhousing i believe they are the same too as the LT1

93turboLT1

All this is correct, its definitly not a easy swap, but not impossible. The tranmission is very differnet, the bolt pattern, shaft length and spline count are different. But if you are in question of the transmission already then it doesn't sound like a smart route.

MrBill97396

iTrader: (10)

for the price of the swap you could have a built LT1 383

TwoFast4Lv

iTrader: (8)

best bet is to get a wrecked LSx car and take every thing you need.

There is alot of it.

OH and yes the trans is definately different. different length's and different bellhousings. you can physicly bolt the two together but it will take the right clutch and or TQ converter. Custom stuff

Definately worth doing. You will ALWAYS be working with at least 50 more HP then you were before

Cchris1109

iTrader: (11)

i would think the automatic tranny would fit...

Cchris1109

iTrader: (11)

because C5 vettes, came with 460LEs, and the new one is that 4l65 or whatever im assuming they would be close or a direct fit...

TwoFast4Lv

iTrader: (8)

no not a direct fit. the LSx 4L60E never came in the C4. There for they never made one for the C-beam. you can use a LTx 4L60E but the converter will be custom. no big but some thing to be looking for


BTW the C5 has the trans in the rear

Camaroholic

iTrader: (1)

I've been thinking about it for my '94Z. I gotta get rid of the L99 (4.3L Caprice motor) I have in there right now.

I figure to do it right, I'd need to swap the entire electrical system. Gauge cluster works differently (tach will be off). A cluster swap doesn't work plug n play either, unless you use the LS1 gas tank (gas sending units are different). The OBD plug under my dash is different (OBD1), so that'd need to be taken care of. Does the radiator have hoses that go on differently? I don't remember. The LS1 uses a returnless fuel line, so 'something' needs to be reworked there (more info in the Conversions & Hybrids forum on that).

I have the K-member from my '98, the whole steering rack assembly & pump, my old waterpump, the entire A/C system, even have a set of front LS1 spindles & brakes that I already planned on putting on the '94... but it'd be a heckuva lot more work than just rebuilding my old motor (the LT1 that I blew up).

Indeed, the best thing to do would be to get an entire car and swap everything.

SantaCruz163

iTrader: (6)

I believe you need an after market hood as well because the LS engines won't fit under a stock LT1 hood.

TwoFast4Lv

iTrader: (8)

It will fit fairly east in a F-body. You can use a LT1 Tank but I would upgrade the pump and make it a return style system. all you have to do is put a fuel regulator up front and use the LT1 return hose with it.

You should get a LS1 radiator but CAN use the lt1 rad. SLP used to sell LT1 Radiators as up grades to the LS1 guys. they just blocked off two outlets

You can change out the dash. I have not dove into that part yet. NOT sure it if would fix it but in tuner cats you can adjust the RPM pulses. NOT sure if it controls tach out put or throws the whole system off.

When you find a wiring harness make sure it has ALL the stuff your car does. there are tons of different versions an Firebirds, Trans-Ams and camaros are all different

Good luck!

RoAdRaGe912

why SHOULD he go with an LS1 radiator?? why go to a smaller radiator when he already has one that is 50% larger? it's as simple as blocking off the lines that used to go to to the oil cooler.

the LS1 fits just fine under the hood of an LT1. it's the LS1 lid (air induction) setup that wont' fit under a stock LT1 hood.

anyway, you can use the fuel rail setup from a 97-98 vette which had a regulator on the rail and keep the LT1 fuel pump setup the way it is.

the input shafts and bellhousings are different but the LT1 t56 will bolt up to an LS1. you lose two bolt holes in doing so and need to use the LT1 clutch setup. if i was going to have an LS1 i'd rather have the push style clutch which the LS1 had instead of the pull style, but that is all M6 info anyway and you're talking automatic.

all the gauge stuff can be remedied, but i'm not sure if someone makes a setup that is already available.

i REALLY don't think you should take on a project like this if you don't even know all these differences between the cars. it is by no means of "MEDIUM DIFFICULTY," especially for somebody who doesn't even know what needs to be done.



really, it's not worth it unless you get a stupid deal on an LS1.

TwoFast4Lv

iTrader: (8)

Damn who pissed in your weaties?

Anyways I was suggesting it for the ease. Both The LT1 rad I saw leaked. Other then that it should all be good.

I still think and after market regulator is a better way to go and you still use LT1 lines.

Yes it is allot of work but well worth it in the end IMHO

RoAdRaGe912

it's the internet. kinda hard to convey any kind of expression, esp since i didn't use any cool smilies. i didn't get upset or even have any kind of emotion towards this thread. ALL FACT baby

it doesn't get any easier than using the parts you already have i guess if it leaked then that was their fault.

it's not worth it unless you can make it cost effective, and it's sure not worth it if you have no clue what's going on (thread starter). it's a BIG project, much bigger than most people think.

there's nothing WRONG with the swap and i'm not partial to the LT1 because i own one. i don't even like the one i've got really but i've been wrenching on it for 4 years and it's time for something new.

anyway, i just wanna point out things that were missed, possible other options, the reality of the project, and that it's usually not worth it unless you get some kind of smoking deal. i actually ahve a buddy that MADE money to pull his LT1 out and put an LS1 in. that deal disgusted me.

IMO if you want an LS1, just get a 98+ fbody. if you look around you can find a great deal. if not, good luck with the swap and i'll answer any questions you post up about it.

Cchris1109

iTrader: (11)

sorry i was just making a discussion i mean its not like i was going to really do it, and if i was, i have a master mechanic at my disposal so i was just learning the difficulties and what would be needed. dont bash me!!!!

RoAdRaGe912

i wasn't bashing you. just because you don't know something doesn't mean anything about you. there are plenty of very knowledgable ppl that couldn't rattle off a list of the things that would be needed for the swap.

i was trying to be realistic and a project like that is rough even for somebody who knows the cars well enough to know all the differences. i just didn't want you to get in over your head with a project like that, by not being prepared or by thinking that it would be much easier than it is.

homegrown TA

iTrader: (20)

I did it..............Buy an LS1 car before you do it...after the cost of all the little things adds up you could have bought an LS1 car. I just did it because you don't see an ls1 under the hood of a Firebird" not trans am everyday.