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1988 GTA L98 to LSI engine swap

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Old Dec 13, 2001 | 04:10 PM
  #1  
Robert Myers's Avatar
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From: Westville, Il. USA
Car: 1968 chevelle, 1988 GTA
Engine: SB 355, 1993 350 LT1
Transmission: 4 speed muncie, 700r4
1988 GTA L98 to LSI engine swap

I have a 1988 GTA with a L98 and 700R4 and would like to install a 1998 LS1. Any information or links would help.

Thanks
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Old Dec 14, 2001 | 09:40 AM
  #2  
Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
For starters you will need a complete engine (block, intake, harness, ecm, ignition, and so on) you will also need the trans. Will this have AC? Its kinda like doing a V4/6 swap to a V8... you are better off buying a doner car. I think you need to fab some engine mounts, but i am not sure.
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Old Dec 14, 2001 | 02:57 PM
  #3  
Robert Myers's Avatar
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From: Westville, Il. USA
Car: 1968 chevelle, 1988 GTA
Engine: SB 355, 1993 350 LT1
Transmission: 4 speed muncie, 700r4
I have purchased a complete lift out from a salvage yard. A 1998 LS1 engine, trans, wiring, computor and all exc.
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Old Dec 14, 2001 | 04:46 PM
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From: Decatur, Illinois
I was just wondering how much they charged you for all of that?
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Old Dec 14, 2001 | 06:45 PM
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Let me throw out a guess before he answers

Somewhere between 3-4000
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Old Dec 14, 2001 | 07:05 PM
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Momar's Avatar
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From: Decatur, Illinois
One of our junkyards here got a totaled 97 T/A and I asked about the price on the lt1 just for the sake of asking. I really couldnt afford it right now. They wanted either 4000 or 4500. I thought that this might be high for an lt1. That was all wiring computer and tranny.

Ben
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Old Dec 18, 2001 | 06:13 PM
  #7  
LS1 IROCZ's Avatar
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From: Kiel, Wi
Car: 87 IROC-Z
Engine: 2002 LS6
Transmission: 6 speed
Axle/Gears: 4-11
http://www.fbody.com/members/LS1IROCZ1/
Here is my new website about the ls1 to 3rd gen swap.
it includes dyno charts, lots of pics, and a description of how I did it.

Last edited by LS1 IROCZ; Dec 21, 2001 at 04:27 PM.
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Old Dec 18, 2001 | 06:30 PM
  #8  
89 Iroc Z's Avatar
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From: Costal Alabama
Car: 1989 Iroc-Z
Engine: 350, ZZ4 equivalent
Transmission: Pro-Built Road Race 700R4
Axle/Gears: 3.23 Dana 44
Wow Good job, Thats awesome
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Old Dec 18, 2001 | 08:42 PM
  #9  
LilJayV10's Avatar
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From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
WHOA

I dont think i am even smart enough to do that swap, lol. good job man.
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Old Dec 21, 2001 | 09:04 AM
  #10  
Nickerz's Avatar
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From: Waukesha
I just wanted to say even though I see this question getting asked on pretty much a daily basis I really think its cool you guys still find the time to answer him. This board is were the heart is! MERRY FREAKIN X-MASS!
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Old Jan 2, 2002 | 07:43 AM
  #11  
Robert Myers's Avatar
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Joined: Dec 2001
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From: Westville, Il. USA
Car: 1968 chevelle, 1988 GTA
Engine: SB 355, 1993 350 LT1
Transmission: 4 speed muncie, 700r4
The LS1 from the salvage yard was locked up. So I decited to go with a LT1 out of a 93 z28.

Thanks
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Old Jan 3, 2002 | 01:13 PM
  #12  
Arctic White 91 RS's Avatar
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Joined: Apr 2000
Posts: 682
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From: MidWest
Car: 91 RS/ 99 T/A/ 72 Vette/ 02 Z28
Engine: LSx/ Dart400
Transmission: M6/ M6/ TH400/ 4L60E
Axle/Gears: 4.10's / 3.08/ 2.73
Originally posted by LS1 IROCZ
http://www.fbody.com/members/LS1IROCZ1/
Here is my new website about the ls1 to 3rd gen swap.
it includes dyno charts, lots of pics, and a description of how I did it.
Man that is most impressive!!!
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