Mikey wants a LS1 swap
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Joined: Apr 2009
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Mikey wants a LS1 swap
but lack the resources 
i need someone with a welder and a couple hands to help out when i get around to getting this done. ill pay for any gas the welder needs. (for exhaust etc)
wont be keeping the a/c, so no need to notch the stock Kmember..
but what else do i need? the LS1 im getting is out of a 98 TA and ill be getting everything i need, including the accessory's and injectors, manifolds and such.
things i can think of off hand i think ill need/want
LSX Swap Motor Mounts
LSX Swap Harness
dont need em but i want the corvette covers
what else do i need for a bare bones stock LS1 swap?

Mikey

i need someone with a welder and a couple hands to help out when i get around to getting this done. ill pay for any gas the welder needs. (for exhaust etc)
wont be keeping the a/c, so no need to notch the stock Kmember..
but what else do i need? the LS1 im getting is out of a 98 TA and ill be getting everything i need, including the accessory's and injectors, manifolds and such.
things i can think of off hand i think ill need/want
LSX Swap Motor Mounts
LSX Swap Harness
dont need em but i want the corvette covers

what else do i need for a bare bones stock LS1 swap?

Mikey
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
i THINK, not sure..but i think hes doing a swap right now on a white camaro...ill PM him right now tho 
thanks Mike

thanks Mike
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
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Re: Mikey wants a LS1 swap
Why would you want to hack up a nice car like that with a cobble job ugly motor?
There are other ways you know.
Sorry if that steps on anyones toes, but that's the way I feel.
There are major issues you will have to deal with including the instrument cluster.
When you get all done, what can you say "WOW! I have an LSX"..... big deal.
There are other ways you know.
Sorry if that steps on anyones toes, but that's the way I feel.
There are major issues you will have to deal with including the instrument cluster.
When you get all done, what can you say "WOW! I have an LSX"..... big deal.
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
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From: Adelanto, Ca/ El Paso, Tx
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Re: Mikey wants a LS1 swap
Hey Mike
Don't be mean pass over some popcorn lol
Also Mikey
If u do plan on doing a LSX, I won't mind giving u a hand... in fact I think I would benifit from it... who knows I mite go LSX someday but for now going to stay SBC
And on the motor not a bad deal u got even for free lol
Valentin
Don't be mean pass over some popcorn lol
Also Mikey
If u do plan on doing a LSX, I won't mind giving u a hand... in fact I think I would benifit from it... who knows I mite go LSX someday but for now going to stay SBC
And on the motor not a bad deal u got even for free lol
Valentin
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
yeah lol..thats what im sayin 
and that'd be awsome if i could get everyone i could out once i start this..

and that'd be awsome if i could get everyone i could out once i start this..
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
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Re: Mikey wants a LS1 swap
Nice..I just got ur pm. Ill have to say it can be time consuming but having the parts together it can be done... the engine on the white iroc has been waiting to be mated to a t56.. its best to get it done right..
I can guide you with this swap... its not as hard as the tpi guys think it is.. I think I might of left a biased impression since I did more than just a engine swap. The pictures on my thread demonstrate that It involved a lot of wiring mainly for the dash swap. Ac heater lighting evap and new wiring etc... the swap can be simple and only those who have experienced with lsx will be able to support that... as u can see both of the grey third gens from caligenenarals accomplished their swap with adding the 4th gen cluster.. same as ramair21 the first one I saw with a 3rd gen dash
It can be done at a budget price. Ls1tech classifieds are full of deals for parts
Anyways ull love the weight reduction, gas mileage, performance, and reliability...
The lsx platform is far more advanced than the tpi/lt1and awalys be more superior from my perspective and experience..everyone has different opinions
I can guide you with this swap... its not as hard as the tpi guys think it is.. I think I might of left a biased impression since I did more than just a engine swap. The pictures on my thread demonstrate that It involved a lot of wiring mainly for the dash swap. Ac heater lighting evap and new wiring etc... the swap can be simple and only those who have experienced with lsx will be able to support that... as u can see both of the grey third gens from caligenenarals accomplished their swap with adding the 4th gen cluster.. same as ramair21 the first one I saw with a 3rd gen dash
It can be done at a budget price. Ls1tech classifieds are full of deals for parts
Anyways ull love the weight reduction, gas mileage, performance, and reliability...
The lsx platform is far more advanced than the tpi/lt1and awalys be more superior from my perspective and experience..everyone has different opinions
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From: Anaheim, CA
Car: 1990 RS
Engine: LO3 TPI
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Re: Mikey wants a LS1 swap
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
thank you sir
gonna check out ur thread now..
so it IS possible to make the 3rd gen cluster work with the LS? or should i just get a 4th gen dash?
gonna check out ur thread now..so it IS possible to make the 3rd gen cluster work with the LS? or should i just get a 4th gen dash?
Thread Starter
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Joined: Apr 2009
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
Mikey do your research, get all of your parts/wiring together, and when you’re ready to R & R both motors let me know. We can have a club mod day & BBQ wherever you are going to be doing the swap. A couple cases of soda, 10-15lbs of carne asada, and some tortillas is more than enough to get a group of gear heads over to the pad to take part in an LSX swap and turn wrenches 

and ill provide all the carne and soda...my dad loves bbq'ing and im sure he could wip up some awsome carne asada
Last edited by itsMikey; Nov 1, 2010 at 05:36 PM.
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From: Anaheim, CA
Car: 1990 RS
Engine: LO3 TPI
Transmission: W/C T5
Axle/Gears: 3.73
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Car: 87 IROC-Z
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Re: Mikey wants a LS1 swap
Re: Mikey wants a LS1 swap
Mike, a parts list of what you have already would be helpful.
Me and TPI TERR built our cars in our driveways except for the y-pipe because we dont have a welder other than that its not too difficult.
Not to step on anyone's toes but once you're done you'll be happy and that's all that matters. I'm pretty satisfied with my build and don't just say "Wow I have an LSX" I say wow
I'm not a mechanic nor do I own m own shop but my daily driver smoked 98% of the so cal TPI builds @ LA Invasion. First time at the 1/4 mile with a lot left on the table as evidenced by my trap speed and weak 60ft times. (Flame suit on)
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From: Anaheim, CA
Car: 1990 RS
Engine: LO3 TPI
Transmission: W/C T5
Axle/Gears: 3.73
Re: Mikey wants a LS1 swap
Re: Mikey wants a LS1 swap
Don't get me wrong TPI’s are impressive for what they are, 1980’s technology. The fact that some people use ingenuity to make almost 400rwhp N/A with TPI’s is borderline unbelievable.
I give the TPI credit but the "TPI Cult" members are in denial of technological advances. A bit ironic, its ok to swap in better 4th gen rear ends, better 4th gen transmissions(T56/4L60), better 4th gen brakes(and vette brakes), better 4th gen seats, better 4th gen wheels(and vette wheels) but god forbid you swap in an LSX for your tired, leaky, and outdated TPI??
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Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
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Re: Mikey wants a LS1 swap
Mikey do your research, get all of your parts/wiring together, and when you’re ready to R & R both motors let me know. We can have a club mod day & BBQ wherever you are going to be doing the swap. A couple cases of soda, 10-15lbs of carne asada, and some tortillas is more than enough to get a group of gear heads over to the pad to take part in an LSX swap and turn wrenches 

I'll be the supervisor... HEY DROP THAT TACO, GET BACK UNDER THE CAR...
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
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Re: Mikey wants a LS1 swap
"my daily driver smoked 98% of the so cal TPI builds @ LA Invasion."
Vincent is going to whip on you like the Ace of Spades and the Jack of Clubs.
Vincent is going to whip on you like the Ace of Spades and the Jack of Clubs.
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From: Venice Ca.
Car: 92 T/A Convertible
Engine: 5.7 (L98)
Transmission: WC T-5
Axle/Gears: 3.27 LSD
Re: Mikey wants a LS1 swap
Man this sucks mikey is putting in a LS1 im BARELY putting in a TPI with a T-5
I did get it for free though! But hey make the date ill bring my fluke and my laptop with ALLDATA on it if it would help.......... hey mike were is my popcorn????......... and dancing banannas? Re: Mikey wants a LS1 swap
Put me in line to buy up all the LS1 swap parts when you lose interest/motivation/ or realize you are in over your head 
I wouldn't say a full on engine swap to a different type of engine is the best place to start learning how to turn wrenches and chase wires.

I wouldn't say a full on engine swap to a different type of engine is the best place to start learning how to turn wrenches and chase wires.
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From: riverside
Car: 86 iroc,89iroc,98z28
Engine: 305,305,ls1
Transmission: 700r4/4l60e
Axle/Gears: 2.77/3.23
Re: Mikey wants a LS1 swap
I love the look of the off the line power of an tpi but the the hp, gas mileage,parts that are out there for an ls1 . I always bang the tpi drum , to all my ls1 peeps I know they make lots of power when you know what your doing ,Vincent's car is great seen it when it was the stock motor . then drove by it when he put his modded motor and it sounded bad@$$. I have an 98 ls1 that's fun to drive and will one day put an ls1 or lq9 in my 86 iroc not an diss on the tpi just can't have two money pits. for the cash ls1 it would be cheaper for me have two on my stands and my tpi is an 5.0 so get the eng then mod it. Mikey got his for ffrrreee you can't beat that I'm down to help out mikey.
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: Mikey wants a LS1 swap
I give the TPI credit but the "TPI Cult" members are in denial of technological advances. A bit ironic, its ok to swap in better 4th gen rear ends, better 4th gen transmissions(T56/4L60), better 4th gen brakes(and vette brakes), better 4th gen seats, better 4th gen wheels(and vette wheels) but god forbid you swap in an LSX for your tired, leaky, and outdated TPI??
i personally think its unique to find a ls1 in different types of cars such as the imports ex s200s 350z and now even german cars.. well i find it interesting that people use gm parts on other cars.
what do u guys think about ls powered c4s? and 80's cars, trucks, el caminos etc?
what do you guys think about gmpp big blocks?
its a bit different here with the 3rd gens..
seems like people are getting offended..
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From: CPT (Southern Cali)
Car: 09 GSXR/88 iroc/91 RS B4C
Engine: 600cc/l5.7/5.7
Transmission: 6 speed/TH 350/auto
Axle/Gears: 45tooth rear?/3.23/3.42
Re: Mikey wants a LS1 swap
I agree it is unique to see ls1's in imports, European cars, just like it was unique to see ls1 swap in GM cars a few years ago. With more and more people going ls1 route it is no longer unique and the wow factor is no longer there. In the end it all depends on how deep your wallet is and how much of the work you can do yourself.
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From: Glendale, CA
Car: 1992 RS
Engine: LS1
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Axle/Gears: 3.42
Re: Mikey wants a LS1 swap
Where are you getting the motor from? What condition is it in? How many miles are on it? It’s cool that you’re getting the motor and transmission for free but I still wouldn’t want to put in a 98 LS1 in my car. 98's have a few things going against them.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
I’m looking at it this way. From what I have seen you have a clean low millage GTA. It already came with a 350 and the Tuned Port Injection setup. You already have a good foundation to start with. If your car was a 305 TBI or worse a v6 the ls swap would be the definite way to go. Bill with literally heads, cam, and intake (with supporting mods) put down 397 rwhp on his stock bottom end. And he just passed smog with his setup. As I listed above, in order to get the power you want you will needs a heads, cam, and intake for that 98. For the money you would spend on the whole swap you can just mod what you already have. Keep in mind I know the motor is free.
Moving on to the interior, I love the thirdgen interior. Not saying it’s the highest of quality or luxurious but it in itself is unique. To swap out a good thirdgen interior for a fourthgen interior I don’t think is worth it. Unless your current interior messed up. I like the fourthgen interior but I wouldn’t swap it in unless I really had to.
All my buddies I hang out with all drive ls1’s. They are fast and awesome cars that put down anywhere between 360-400 rwhp, but all of them have longtubes and have to pay somebody under the table to get smoged. Lee doesn’t but his is stock motor that puts down 320 with supporting mods. (A very fast car by the way)
If you believe you can do an ls swap the right way and not half assed for cheap and you don’t care about smog then go for it. But look at all your options first before you do it.
-Tony
p.s.
If you’re getting the motor and trans for free sell it and make some money! Use the money towards a 01-02 ls1 instead.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
I’m looking at it this way. From what I have seen you have a clean low millage GTA. It already came with a 350 and the Tuned Port Injection setup. You already have a good foundation to start with. If your car was a 305 TBI or worse a v6 the ls swap would be the definite way to go. Bill with literally heads, cam, and intake (with supporting mods) put down 397 rwhp on his stock bottom end. And he just passed smog with his setup. As I listed above, in order to get the power you want you will needs a heads, cam, and intake for that 98. For the money you would spend on the whole swap you can just mod what you already have. Keep in mind I know the motor is free.
Moving on to the interior, I love the thirdgen interior. Not saying it’s the highest of quality or luxurious but it in itself is unique. To swap out a good thirdgen interior for a fourthgen interior I don’t think is worth it. Unless your current interior messed up. I like the fourthgen interior but I wouldn’t swap it in unless I really had to.
All my buddies I hang out with all drive ls1’s. They are fast and awesome cars that put down anywhere between 360-400 rwhp, but all of them have longtubes and have to pay somebody under the table to get smoged. Lee doesn’t but his is stock motor that puts down 320 with supporting mods. (A very fast car by the way)
If you believe you can do an ls swap the right way and not half assed for cheap and you don’t care about smog then go for it. But look at all your options first before you do it.
-Tony
p.s.
If you’re getting the motor and trans for free sell it and make some money! Use the money towards a 01-02 ls1 instead.
Joined: Nov 2002
Posts: 6,642
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From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: Mikey wants a LS1 swap
Why would you want to hack up a nice car like that with a cobble job ugly motor?
There are other ways you know.
Sorry if that steps on anyones toes, but that's the way I feel.
There are major issues you will have to deal with including the instrument cluster.
When you get all done, what can you say "WOW! I have an LSX"..... big deal.
There are other ways you know.
Sorry if that steps on anyones toes, but that's the way I feel.
There are major issues you will have to deal with including the instrument cluster.
When you get all done, what can you say "WOW! I have an LSX"..... big deal.
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
Where are you getting the motor from? What condition is it in? How many miles are on it? It’s cool that you’re getting the motor and transmission for free but I still wouldn’t want to put in a 98 LS1 in my car. 98's have a few things going against them.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
I’m looking at it this way. From what I have seen you have a clean low millage GTA. It already came with a 350 and the Tuned Port Injection setup. You already have a good foundation to start with. If your car was a 305 TBI or worse a v6 the ls swap would be the definite way to go. Bill with literally heads, cam, and intake (with supporting mods) put down 397 rwhp on his stock bottom end. And he just passed smog with his setup. As I listed above, in order to get the power you want you will needs a heads, cam, and intake for that 98. For the money you would spend on the whole swap you can just mod what you already have. Keep in mind I know the motor is free.
Moving on to the interior, I love the thirdgen interior. Not saying it’s the highest of quality or luxurious but it in itself is unique. To swap out a good thirdgen interior for a fourthgen interior I don’t think is worth it. Unless your current interior messed up. I like the fourthgen interior but I wouldn’t swap it in unless I really had to.
All my buddies I hang out with all drive ls1’s. They are fast and awesome cars that put down anywhere between 360-400 rwhp, but all of them have longtubes and have to pay somebody under the table to get smoged. Lee doesn’t but his is stock motor that puts down 320 with supporting mods. (A very fast car by the way)
If you believe you can do an ls swap the right way and not half assed for cheap and you don’t care about smog then go for it. But look at all your options first before you do it.
-Tony
p.s.
If you’re getting the motor and trans for free sell it and make some money! Use the money towards a 01-02 ls1 instead.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
I’m looking at it this way. From what I have seen you have a clean low millage GTA. It already came with a 350 and the Tuned Port Injection setup. You already have a good foundation to start with. If your car was a 305 TBI or worse a v6 the ls swap would be the definite way to go. Bill with literally heads, cam, and intake (with supporting mods) put down 397 rwhp on his stock bottom end. And he just passed smog with his setup. As I listed above, in order to get the power you want you will needs a heads, cam, and intake for that 98. For the money you would spend on the whole swap you can just mod what you already have. Keep in mind I know the motor is free.
Moving on to the interior, I love the thirdgen interior. Not saying it’s the highest of quality or luxurious but it in itself is unique. To swap out a good thirdgen interior for a fourthgen interior I don’t think is worth it. Unless your current interior messed up. I like the fourthgen interior but I wouldn’t swap it in unless I really had to.
All my buddies I hang out with all drive ls1’s. They are fast and awesome cars that put down anywhere between 360-400 rwhp, but all of them have longtubes and have to pay somebody under the table to get smoged. Lee doesn’t but his is stock motor that puts down 320 with supporting mods. (A very fast car by the way)
If you believe you can do an ls swap the right way and not half assed for cheap and you don’t care about smog then go for it. But look at all your options first before you do it.
-Tony
p.s.
If you’re getting the motor and trans for free sell it and make some money! Use the money towards a 01-02 ls1 instead.

the 98 LS1 problems dont really scare me TOO much. im not looking for gobs of power out of this thing. my dad had a 98 white trans am a while back that ran 11.2 NA with just bolt ons, heads and cam with straight headers..thats good enough for me
but i could MAYBE, sell the LS1 and my L98 and get a C5 ls1 or any LSX from 2001-current if the price is right...better choice?
my interior is great besides the front seats, everything else looks awsome tho...my dash isnt cracked at all

the 241 heads are what my dad had on the old 98 IIRC...
so...what do you guys think i should do? its just gonna be a fun street car...im not trying to make it fly or anything..just looking for low 12's
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Joined: May 2006
Posts: 627
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From: Glendale, CA
Car: 1992 RS
Engine: LS1
Transmission: T-56
Axle/Gears: 3.42
Re: Mikey wants a LS1 swap
That’s cool your getting your dads old motor. Will it come with all the accessories, or is your dad going to use it for his new motor?
For the transmission I would look for a 4l60e and not waste your time with the 700r4. Yes they are damn near the same thing but having the electronic tranny will accommodate the ls1 a lot more. Plus for the price to build up that transmission you can just buy a new one. Check out Xtreme Performance Transmissions and ask for Johnny (310)539-1239. He is located on 1911 Pacific Coast Hwy. Lomita, CA 90717
I've read that c5 ls1's are harder to swap in. They are drive by wire and the accessories are different. To your question earlier about your gauges, you can make them work. You just need to get a converter box. A couple months ago GMHTP had a lsx swap guide into a thirdgen. I think my buddy still has his.
It sounds like you have a good thing going for you. For what you said you want, you can swap it in with a small cam and just call it a day.
For the transmission I would look for a 4l60e and not waste your time with the 700r4. Yes they are damn near the same thing but having the electronic tranny will accommodate the ls1 a lot more. Plus for the price to build up that transmission you can just buy a new one. Check out Xtreme Performance Transmissions and ask for Johnny (310)539-1239. He is located on 1911 Pacific Coast Hwy. Lomita, CA 90717
I've read that c5 ls1's are harder to swap in. They are drive by wire and the accessories are different. To your question earlier about your gauges, you can make them work. You just need to get a converter box. A couple months ago GMHTP had a lsx swap guide into a thirdgen. I think my buddy still has his.
It sounds like you have a good thing going for you. For what you said you want, you can swap it in with a small cam and just call it a day.
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Mikey wants a LS1 swap
Just food for thought.....
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
That’s cool your getting your dads old motor. Will it come with all the accessories, or is your dad going to use it for his new motor?
For the transmission I would look for a 4l60e and not waste your time with the 700r4. Yes they are damn near the same thing but having the electronic tranny will accommodate the ls1 a lot more. Plus for the price to build up that transmission you can just buy a new one. Check out Xtreme Performance Transmissions and ask for Johnny (310)539-1239. He is located on 1911 Pacific Coast Hwy. Lomita, CA 90717
I've read that c5 ls1's are harder to swap in. They are drive by wire and the accessories are different. To your question earlier about your gauges, you can make them work. You just need to get a converter box. A couple months ago GMHTP had a lsx swap guide into a thirdgen. I think my buddy still has his.
It sounds like you have a good thing going for you. For what you said you want, you can swap it in with a small cam and just call it a day.
For the transmission I would look for a 4l60e and not waste your time with the 700r4. Yes they are damn near the same thing but having the electronic tranny will accommodate the ls1 a lot more. Plus for the price to build up that transmission you can just buy a new one. Check out Xtreme Performance Transmissions and ask for Johnny (310)539-1239. He is located on 1911 Pacific Coast Hwy. Lomita, CA 90717
I've read that c5 ls1's are harder to swap in. They are drive by wire and the accessories are different. To your question earlier about your gauges, you can make them work. You just need to get a converter box. A couple months ago GMHTP had a lsx swap guide into a thirdgen. I think my buddy still has his.
It sounds like you have a good thing going for you. For what you said you want, you can swap it in with a small cam and just call it a day.

and yeah, heads cam, water pump, CAI etc...little things
we'll see tho...but i think the the 98 LS1 would be enough power for me once i get the already said mods.
thanks for the tranny recomendation tho
appreciate all the insight/advice
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
Just food for thought.....
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
again, wouldent get the experience and im getting the LS for free...
Senior Member

Joined: May 2006
Posts: 627
Likes: 1
From: Glendale, CA
Car: 1992 RS
Engine: LS1
Transmission: T-56
Axle/Gears: 3.42
Re: Mikey wants a LS1 swap
Just food for thought.....
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
JerryWho has (for sale)
A SuperRam ported
Edelbrock base and runners, add a set of AFR 195 eliminators, a Comp cam and cold air intake using your stock L98 block "bingo" you will have a 360+RWHP daily driver that will pass smog, get 20+ MPG on the Hwy run 12's in the 1/4 mile.
Senior Member

Joined: May 2006
Posts: 627
Likes: 1
From: Glendale, CA
Car: 1992 RS
Engine: LS1
Transmission: T-56
Axle/Gears: 3.42
Re: Mikey wants a LS1 swap
Supreme Member
iTrader: (3)
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: Mikey wants a LS1 swap
From what I have seen just a straight LS1 swap is good for 13.5's in a car such as yours. You will need a couple of mods to get into the 12's which can be done easily enough. It's only money.
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Mikey wants a LS1 swap
Well ok, then do this:
Write on a piece of paper, I got an LS1 for free and everybody says it's a piece of cake to install in my car in my driveway. Put it away in a drawer somewhere.
Then someday when you need a good laugh dig it out and read it.
Write on a piece of paper, I got an LS1 for free and everybody says it's a piece of cake to install in my car in my driveway. Put it away in a drawer somewhere.
Then someday when you need a good laugh dig it out and read it.
Member
Joined: Apr 2010
Posts: 258
Likes: 0
From: Venice Ca.
Car: 92 T/A Convertible
Engine: 5.7 (L98)
Transmission: WC T-5
Axle/Gears: 3.27 LSD
Re: Mikey wants a LS1 swap
Supreme Member
iTrader: (2)
Joined: Mar 2002
Posts: 2,516
Likes: 5
From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Mikey wants a LS1 swap

One day I will race those guys with the LSx engines in their 3gens and put a good spanking on them with my old a$$ TPI.
Last edited by VincentZ28; Nov 2, 2010 at 07:01 PM.
Supreme Member
iTrader: (3)
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: Mikey wants a LS1 swap
"One day I will race those guys with the LSx engines in their 3gens and put a good spanking on them with my old a$$ TPI."
Hehehehe. Go Vincent Go. Show them how its done.
Hehehehe. Go Vincent Go. Show them how its done.
Senior Member
Joined: Jan 2008
Posts: 519
Likes: 0
From: SoCal 909
Car: 91 RS vert/ 89 iroc vert
Engine: 305 TBI/305 TPI
Transmission: 700r4Xtwo
Axle/Gears: 10 bolt non-pos. B/W 9 bolt pos
Re: Mikey wants a LS1 swap
is his money, his time and his sweat
just saying!!!
and keep this in mind, tpi terr is in his early twenties and HAS done every swap at home, so it is possible just like a 400hp tpi engine.
Member
iTrader: (1)
Joined: Jan 2006
Posts: 125
Likes: 0
From: riverside
Car: 86 iroc,89iroc,98z28
Engine: 305,305,ls1
Transmission: 700r4/4l60e
Axle/Gears: 2.77/3.23
Re: Mikey wants a LS1 swap
[QUOTE=thegooseman;4723181]Where are you getting the motor from? What condition is it in? How many miles are on it? It’s cool that you’re getting the motor and transmission for free but I still wouldn’t want to put in a 98 LS1 in my car. 98's have a few things going against them.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
Keep in mind I know the motor is free.
I changed alot of the stuff that's wrong with the 98 I got the oil passages bored out. went to 241s ,ls6 intake and got a 00 pcm and harness got truckcoil packs and spent around 1000 now car the feels great . you can do these mods one at a time, they have an spacer that they sell on ebay for an stock ls1 flywheel to 700r4. if my car was an stock 350 I would just mod it one step at a time . sell the ls1 then get an intake.
Even though the heads outflow any stock sbc head they are one of the worst flowing heads for LS motors, plus they are perimeter bolt and not center bolt heads. It has individual coil packs rather than the single rack. (I worded that weird but lsx people will know what I’m talking about with that)The computer is harder to tune than the later models. The block also has smaller oil passages compared to later ls1 blocks and can’t handle as much hp. (that’s if you get that high) And the plain Jane ls1 intake. A stock 98 motor realistically has about 270 rwhp. It’s the 01-02's are the motors that put down 320 rwhp stock. Those are the ls1’s you want to swap in your car.
Now the flaws with the 98 can be easily fixed. The heads can be fixed by getting 241 heads or even getting 5.3 heads. With those you get to raise the compression. Get newer coil packs or do a cheap upgrade by getting the truck coil packs. You can find a used LS6 intake, and for the computer you can find a 99 or later computer and harness.
Even though you’re getting the motor for free, to make it perform the way you want you will have to fix those early drawbacks, and the money adds up.
Keep in mind I know the motor is free.
I changed alot of the stuff that's wrong with the 98 I got the oil passages bored out. went to 241s ,ls6 intake and got a 00 pcm and harness got truckcoil packs and spent around 1000 now car the feels great . you can do these mods one at a time, they have an spacer that they sell on ebay for an stock ls1 flywheel to 700r4. if my car was an stock 350 I would just mod it one step at a time . sell the ls1 then get an intake. Re: Mikey wants a LS1 swap
BTW I also think its funny how the this thread was about advice on on LS1 swap and automatically every member of the TPI Cult jumped in to intervene




Member
Joined: Jun 2009
Posts: 411
Likes: 0
From: pomona, ca
Car: 1989 camaro Rs or iroc clone??
Engine: 5.oh tpi
Transmission: borg warner t5 world class
Axle/Gears: 3.23-GU5
Re: Mikey wants a LS1 swap
Man this sucks mikey is putting in a LS1 im BARELY putting in a TPI with a T-5
I did get it for free though! But hey make the date ill bring my fluke and my laptop with ALLDATA on it if it would help.......... hey mike were is my popcorn????......... and dancing banannas?
Thread Starter
Supreme Member
Joined: Apr 2009
Posts: 2,852
Likes: 2
From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: Mikey wants a LS1 swap
will do bro
haha..
so many haters
how bout this, you do you, and ill do me
i asked for advice and i appreciate all the input but i have my heart set on an LS1 swap...
and im pretty sure the 700R4 will bolt right up...
and yeah ill be sad when i get this in and vince spanks me
lol...that'll be a sad day for mikey
haha..so many haters

how bout this, you do you, and ill do me
i asked for advice and i appreciate all the input but i have my heart set on an LS1 swap...and im pretty sure the 700R4 will bolt right up...
and yeah ill be sad when i get this in and vince spanks me
lol...that'll be a sad day for mikey 






