LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

I did it!

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Old Nov 14, 2009 | 10:59 AM
  #1  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I did it!

I finally touched the LS1/T56 project again last night! First time since late May.

Did some more on the wiring. Current issue is finding a battery connection for the fuse/relay box, chassis power, and HVAC fan. I have the 4th gen battery cable that goes to the alternator and fuse/relay box, but I'm using an aftermarket swap fuse/relay box that doesn't have a battery cable lug, just a 10-gauge wire. The chassis & HVAC fan power came from the starter battery lug on the '82, which the LS1 harness doesn't have. I'm hoping to find a proper lug or buss bar this morning so I can continue.

After that it's hooking up the temp gauge sender wire, mounting the HVAC box back in, finishing the radiator fans wiring (ground wires), figuring out how to mount the PCM in the passenger compartment, wiring the aftermarket gauge cluster, and a whole bunch of other little things. . .
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Old Nov 14, 2009 | 11:02 AM
  #2  
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From: Endicott, NY
Car: 1986 IROC-Z
Engine: 420HP ZZ4 350
Transmission: TH350
Axle/Gears: 4:11's
Re: I did it!

Sounds like a nice little project you got going on there. Good luck with it.
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Old Nov 14, 2009 | 11:05 AM
  #3  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I pulled the LG4/TH200C out in Feb '08. It's been "going on" for far too long for my taste.

But, it will be running this winter. . .

Last edited by five7kid; Nov 14, 2009 at 11:56 AM.
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Old Nov 14, 2009 | 11:12 AM
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From: Endicott, NY
Car: 1986 IROC-Z
Engine: 420HP ZZ4 350
Transmission: TH350
Axle/Gears: 4:11's
Re: I did it!

Is the LS1/T56 going in the 82 Berlinetta i see you have in your garage?
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Old Nov 14, 2009 | 11:56 AM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I have two '82 Berlinettas. #1 is the green one, #2 is the silver one.

The LS1/T56 is going in the silver one.
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Old Nov 14, 2009 | 01:17 PM
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From: Tacoma, Wa
Car: '91 TA vert
Engine: turboLSx
Transmission: T56
Axle/Gears: 3.23
Re: I did it!

Congrats on cracking into it again. I know my swap took way too long just because I was slacking hardcore.

For a battery connection, what about using the boxed stud that hangs off a trucks alternator wiring? T's into a battery cable IIRC. It provides a stud as well as protection from grounding out on something.
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Old Nov 14, 2009 | 01:20 PM
  #7  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Hmmm, I'll have to look at my LQ4 and see if it has that.

I got the fuse/relay box with the LQ4, but that's being saved for the '57.
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Old Nov 14, 2009 | 02:25 PM
  #8  
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From: Indiana
Car: 1991 Firebird
Engine: n/a
Transmission: n/a
Axle/Gears: 3.27, I think
Re: I did it!

Originally Posted by iansane
For a battery connection, what about using the boxed stud that hangs off a trucks alternator wiring? T's into a battery cable IIRC. It provides a stud as well as protection from grounding out on something.
I just used one of those on my 1980 Bonneville as a distribution block for powering just about everything.
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Old Nov 14, 2009 | 03:11 PM
  #9  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
That apparently is where they unbolted my harness.

At least, I couldn't find anything like that.
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Old Nov 14, 2009 | 06:18 PM
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From: Tacoma, Wa
Car: '91 TA vert
Engine: turboLSx
Transmission: T56
Axle/Gears: 3.23
Re: I did it!

No big surprise, they're easy to lose off the charge wire on the alt. You can get them brand new from GM for cheap though. My catalogging is down right now otherwise I'd give you the part number.
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Old Nov 14, 2009 | 07:36 PM
  #11  
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From: Indiana
Car: 1991 Firebird
Engine: n/a
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Axle/Gears: 3.27, I think
Re: I did it!

Here's what I was talking about. It's the thing in the upper left hand corner with single stud on it. 73-87 Chevy trucks use these and some have 2 studs. Some of the newer truck have one like it next to their fan shroud.

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Old Nov 14, 2009 | 07:44 PM
  #12  
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: I did it!

My GTA has one a 2 post version of the one in the above picture, might go and find a TPI car (or a V6 MPFI car) and rob it. It bolts to the passenger side radiator support.
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Old Nov 14, 2009 | 11:39 PM
  #13  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
That would probably work, as long as the battery cable lug fit between the posts.

I looked through Car Quest's catalog, couldn't find anything.

I believe the '84 van we used to have had one of those.
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Old Nov 15, 2009 | 03:34 AM
  #14  
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From: Indiana
Car: 1991 Firebird
Engine: n/a
Transmission: n/a
Axle/Gears: 3.27, I think
Re: I did it!

This one might work better.



This was from a late 90s or early 00s chevy suburban.
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Old Nov 15, 2009 | 09:12 AM
  #15  
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: I did it!

Originally Posted by five7kid
That would probably work, as long as the battery cable lug fit between the posts.

I looked through Car Quest's catalog, couldn't find anything.

I believe the '84 van we used to have had one of those.
Let me go see if I can get a picture of mine, I remember having a cable coming from the battery cable to the distro block.
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Old Nov 15, 2009 | 12:42 PM
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Car: 91 Trans Am
Re: I did it!

Mid 90s S10s used a 5 post version
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Old Nov 15, 2009 | 02:20 PM
  #17  
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From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: I did it!

Originally Posted by Pocket
Mid 90s S10s used a 5 post version
That's what I am using, I am running everything needing 12v to that block and it cleans up the engine bay quite a bit. I have pictures in the last page or two of my swap thread.
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Old Nov 16, 2009 | 02:53 PM
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Re: I did it!

Originally Posted by robotic_junky
Here's what I was talking about. It's the thing in the upper left hand corner with single stud on it. 73-87 Chevy trucks use these and some have 2 studs. Some of the newer truck have one like it next to their fan shroud.

I've yet to see any '76-'91 Camaro that didn'tb have one of these hidden somewhere, same for S-10s, '83-'89.
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Old Nov 16, 2009 | 03:06 PM
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Re: I did it!

Maybe you'll like this piece, found on late fullsize GM pickups:
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Old Nov 16, 2009 | 08:47 PM
  #20  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Looks like I need a trip to the pick & pull - not a simple proposition for me (believe it or not - all at least 20 miles away, fighting the crowds on weekends, finding a day with decent weather - we just had 12" of snow this past weekend - etc.).

One with a cover would be very nice.
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Old Nov 16, 2009 | 10:48 PM
  #21  
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From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
Re: I did it!

glad to hear you got more accomplished!

you said you're planning to run this in some kind of clutch car class, right? what are you doing for drivetrain/clutch upgrades?
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Old Nov 16, 2009 | 11:21 PM
  #22  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Stock T56 (AMSOIL lube, of course). LS7 clutch & flywheel. Drill mod on the master cylinder. The engine/tranny came out of a 2000 SS, so it had the Hurst shifter already.

10-bolt with all new guts - aftermarket posi, gears (4.10), and axles (28 spline, of course), all new bearings, welded tubes, aluminum support cover.
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Old Nov 17, 2009 | 09:15 AM
  #23  
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Car: 91 Trans Am
Re: I did it!

I've yet to see any '76-'91 Camaro that didn'tb have one of these hidden somewhere
TPI cars didnt have them. Atleast not the later ones
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Old Nov 20, 2009 | 10:40 PM
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From: 39.84N 105.11W
Car: '89 Trans Am GTA
Engine: WAS 350 - now L92 (alum. 378/6.2L)
Transmission: WAS 700R4, now a built T56
Axle/Gears: 3.27 9-bolt
Re: I did it!

Originally Posted by five7kid
Looks like I need a trip to the pick & pull - not a simple proposition for me (believe it or not - all at least 20 miles away, fighting the crowds on weekends, finding a day with decent weather - we just had 12" of snow this past weekend - etc.).

One with a cover would be very nice.
Hey five7,

I'm planning on a trip to the boneyard early in the morning - I'll keep an eye out, & if I find a second one (because I'll be looking for one for myself as well), I'll just pick it up for ya.
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Old Nov 23, 2009 | 03:32 PM
  #25  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally Posted by robotic_junky
This one might work better.



This was from a late 90s or early 00s chevy suburban.
Originally Posted by V8Rumble
Hey five7,

I'm planning on a trip to the boneyard early in the morning - I'll keep an eye out, & if I find a second one (because I'll be looking for one for myself as well), I'll just pick it up for ya.
Tim found one for me. Perfect.

Thanks, bud! I owe you one!
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