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.

finally done with ls1 swap

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Old Jul 18, 2010 | 07:15 PM
  #1  
ls6iroc's Avatar
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From: Buffalo NY
Car: 89 iroc
Engine: ls6
Transmission: 4l60e
finally done with ls1 swap

finally finished my swap. thanks for all the help and info in this forum it was awesome!

a few observations-

1. the hawks headers fit fine with my 4l60e. no mods required.
2. it appears my ride height has not changed. i am running hotchkis lowering springs and the ride height is the same.
3. the ls1 in a 3rd gen is even better than i imagined! this thing is a blast to drive!







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Old Jul 18, 2010 | 07:51 PM
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From: Crestview, FL.
Car: 1989 IROC-Z, 1979 Malibu Classic
Engine: LSx 5.3
Transmission: MN12 6-speed, 4L60E
Axle/Gears: 4th gen 3.42
Re: finally done with ls1 swap

Very nicely done man, looks like it came from the factory this way. Hope you have fun with it, that thing is definitely a sleeper!
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Old Jul 18, 2010 | 07:59 PM
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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
Which Hawks headers did you go with?
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Old Jul 18, 2010 | 08:00 PM
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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 just noticed, those pics were taken 8-1/2 years ago.
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Old Jul 18, 2010 | 10:37 PM
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Re: finally done with ls1 swap

Wow.. Very clean install , looks good....
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Old Jul 18, 2010 | 10:48 PM
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From: Myrtle Beach, SC
Car: 84 15th Anniversary Trans Am
Engine: built 406
Transmission: T-5
Axle/Gears: 3.73 10bolt
Re: finally done with ls1 swap

good stuff! how's chuck's tune?
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Old Jul 18, 2010 | 11:48 PM
  #7  
TPI TERR's Avatar
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Re: finally done with ls1 swap

good stuff man!. thats one sleeper look
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Old Jul 18, 2010 | 11:51 PM
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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: finally done with ls1 swap

That's one of my favorite color combo's for the IROC-Z. The swap looks killer by the way, very clean.
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Old Jul 19, 2010 | 03:41 AM
  #9  
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From: Buffalo NY
Car: 89 iroc
Engine: ls6
Transmission: 4l60e
Re: finally done with ls1 swap

Which Hawks headers did you go with? 1 3/4" 3" collector. the o2's lined up nice and reversed the shifter arm.

good stuff! how's chuck's tune? the other half jason did the tune. chuck was on vacation but i never could of got it going without him.

thanks!
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Old Jul 19, 2010 | 03:51 AM
  #10  
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From: Buffalo NY
Car: 89 iroc
Engine: ls6
Transmission: 4l60e
Re: finally done with ls1 swap

Originally Posted by five7kid
I just noticed, those pics were taken 8-1/2 years ago.
the wife took the camera with her on vacation had to break out the old one!
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Old Jul 19, 2010 | 05:50 AM
  #11  
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From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: finally done with ls1 swap

great job on the swap, looks like it was meant to be there all along
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Old Jul 19, 2010 | 07:05 AM
  #12  
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From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: finally done with ls1 swap

Looks good man, hope to have another third gen converted soon, but it will be carbed like my 89.
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Old Jul 19, 2010 | 08:25 AM
  #13  
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: finally done with ls1 swap

Which of the coil bracket bolts end up having those arrow shaped tops to mount the covers on? I bought a set to try to cut up for my carb combo but looks like I could move the bolts around a few spots to mount them.
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Old Jul 19, 2010 | 10:03 AM
  #14  
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From: Buffalo NY
Car: 89 iroc
Engine: ls6
Transmission: 4l60e
Re: finally done with ls1 swap

Originally Posted by xpndbl3
Which of the coil bracket bolts end up having those arrow shaped tops to mount the covers on? I bought a set to try to cut up for my carb combo but looks like I could move the bolts around a few spots to mount them.
it snaps on to the fuel rail and just sits on top of the coils.
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Old Jul 19, 2010 | 11:41 AM
  #15  
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: finally done with ls1 swap

oh in that case i won't be able to mount them onto my motor
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