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.

G8 L76 Swap?

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Old Mar 4, 2013 | 02:33 PM
  #1  
1985.camaro.350's Avatar
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From: Londonderry, NH
G8 L76 Swap?

Has anyone done a L76 swap? I looked and it seems like a mixed review of if the accessories will fit or not. Can anyone confirm or deny they will fit? Also these engines come with a 6l80e I know that won't fit without a lot of modification to the trans tunnel. These should be the same bolt pattern as a 4l60e correct? Will a 4l60e hold up to a stock L76? Also will the L76 computer be able to control the 4l60e, or will I need a tuner to code it to work?
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Old Mar 5, 2013 | 06:17 PM
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five7kid's Avatar
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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 don't have exact answers to all your questions, but...

A properly prepped 4L60E will handle the power. Many are behind 600 HP engines, so a stock L76 shouldn't be a problem.

But, no, the L76 computer won't know what to do with a 4L60E. Tuning? Maybe, but I doubt it. Might as well get a stand-alone computer to handle it.
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Old Mar 5, 2013 | 07:15 PM
  #3  
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From: Long Island N.Y
Car: 2007 Z06
Engine: 427
Transmission: M6
Re: G8 L76 Swap?

You can use the L76 with a few changes, you can even use an LS1 F-body computer and harness with it.. I put one in my 02 WS6 a few years ago, here is what i did:

L76 with stock intake & SDPC2000.com Cable 90 mm throttle body
LPE 58 tooth to 24 tooth reluctor ring converter box
re-locate knock sensors if you use them
extension harness for cam & map sensor
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Old Jan 15, 2015 | 11:05 AM
  #4  
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From: chicago
Car: 87 iroc z 28
Engine: 5.7 tpi
Transmission: auto
Re: G8 L76 Swap?

I'm thinking of doing a L76 swap too, how's it going for you?
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Old Jan 15, 2015 | 11:20 AM
  #5  
1985.camaro.350's Avatar
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From: Londonderry, NH
Re: G8 L76 Swap?

Originally Posted by AceofSpades
I'm thinking of doing a L76 swap too, how's it going for you?
I never started. I had swapped a carbed 350 in, spent way more on parts than I did buying the car, and it still needed interior redone, needed paint, and a lot of other work, it was way too unreliable even as a once in a while car. I got sick of sinking money into it so I ended up buying a barely used Chrysler Crossfire, swapped a Mercedes 5.0l v8 in front of the 6 speed and never looked back lol.
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Old Jan 15, 2015 | 12:06 PM
  #6  
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From: chicago
Car: 87 iroc z 28
Engine: 5.7 tpi
Transmission: auto
Re: G8 L76 Swap?

Originally Posted by 1985.camaro.350
I never started. I had swapped a carbed 350 in, spent way more on parts than I did buying the car, and it still needed interior redone, needed paint, and a lot of other work, it was way too unreliable even as a once in a while car. I got sick of sinking money into it so I ended up buying a barely used Chrysler Crossfire, swapped a Mercedes 5.0l v8 in front of the 6 speed and never looked back lol.
Lol dam money pits will do that to you. Long as you have no regrets.
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Old Jan 15, 2015 | 12:28 PM
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1985.camaro.350's Avatar
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From: Londonderry, NH
Re: G8 L76 Swap?

Originally Posted by AceofSpades
Lol dam money pits will do that to you. Long as you have no regrets.
Haha so true. Close to 380 ft/lbs from 2500 rpm to redline in a 3000 lb car, defiantly no regrets. Except how much I spend on tires every year lol

When I buy a house (or rather a garage that happens to come with a free house lol) I do plan on getting another camaro, I really love the way they look. I will probably get one with a LSX/t56 already swapped and upgrade from there this time. First I need to stop spending money on the Crossfire though lol.

Good luck on your swap though. When you get it done I'd love to see some pictures.
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Old Jan 28, 2015 | 10:16 PM
  #8  
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From: NC
Car: 91 Trans Am
Re: G8 L76 Swap?

Originally Posted by AceofSpades
I'm thinking of doing a L76 swap too, how's it going for you?
Its a GEN IV LSx with car intake and tight accessories, so you need to change the oil pan and exhaust. Rest is no different than any other GEN IV
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Old Jul 26, 2019 | 05:25 AM
  #9  
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Re: G8 L76 Swap?

How did the l76 swap go on your 3rd gen???? Just picked up one and cant find any info. Any pics???
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Old Aug 3, 2019 | 03:14 AM
  #10  
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Re: G8 L76 Swap?

What flexplate did you use for the l76 and 4l60e combo???
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