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[Z06] LS3 swap underway......

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Old Sep 7, 2016 | 10:48 AM
  #81  
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Congrats on the swap and very detailed informative post for anyone else considering this!
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Old Sep 7, 2016 | 02:52 PM
  #82  
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Please let us know if, after suitable time on the street and on the track, you still have to use an engine oil cooler (I didn't see any mention of one in your build). Thanks
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Old Sep 7, 2016 | 03:02 PM
  #83  
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Originally Posted by 63Corvette
Please let us know if, after suitable time on the street and on the track, you still have to use an engine oil cooler (I didn't see any mention of one in your build). Thanks
I didn't add an oil cooler
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Old Sep 13, 2016 | 08:19 AM
  #84  
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UPDATE:

I've driven the car approx 250 miles now with the LS3 and have the tune pretty much done except for WOT (waiting for 500 miles to break in clutch). Very smooth and the cam drives better than expected.

For those curious about the Lingenfelter converter box, it does was its supposed to do and I haven't had any issues with it.
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Old Sep 13, 2016 | 12:06 PM
  #85  
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Awesome, job well done.
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Old Sep 13, 2016 | 12:13 PM
  #86  
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Great Job.

Thanks for the update.
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Old Sep 13, 2016 | 12:16 PM
  #87  
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Have you been tuning your car yourself with a wideband?
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Old Sep 13, 2016 | 01:41 PM
  #88  
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Thanks guys.

Yes, I tune with HP Tuners and a NGK wideband.
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Old Sep 23, 2016 | 11:10 AM
  #89  
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Quick question for you turboffr -

For the knock sensors relocation harness did you use the LS1-LS2 one?

http://www.racetronix.biz/itemdesc.a...1-KSRH&eq=&Tp=

Im currently gathering all the parts in preparation of the swap and so far everything
seems straight forward except for this piece.

Thanks!

Drew
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Old Sep 23, 2016 | 12:56 PM
  #90  
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Originally Posted by Drewster67
Quick question for you turboffr - For the knock sensors relocation harness did you use the LS1-LS2 one? http://www.racetronix.biz/itemdesc.a...1-KSRH&eq=&Tp= Im currently gathering all the parts in preparation of the swap and so far everything seems straight forward except for this piece. Thanks! Drew
You want this one to relocate your LS1 sensors to side of block.

http://www.racetronix.biz/itemdesc.a...2DKSRH&eq=&Tp=
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Old Sep 26, 2016 | 07:51 AM
  #91  
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Well after a slight setback, car is back up running. After 250 miles, it started making a grinding noise when taking off in first so I had to pull the drivetrain. I found that the pilot bearing was disintegrated and when spinning the torque tube input shaft it was making a noise and wobbled bad. Pulled the torque tube apart and found aluminum shavings inside (the bearing was junk). I guess the 114k mile torque tube didn't like all the new power from the LS3. I found a torque tube with only 15k miles on it, and also put a new pilot bearing in which meant pulling headers off, bellhousing and clutch. Lots of work and I did it on jackstands. Not too bad and was actually easier then pulling the motor.

While I had the drivetrain out I drained the transmission fluid and gear oil and replaced them with Redline fluids. I also installed the Hinson transmission mount.
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Old Sep 26, 2016 | 10:11 AM
  #92  
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Originally Posted by turboffr
You want this one to relocate your LS1 sensors to side of block.

http://www.racetronix.biz/itemdesc.a...2DKSRH&eq=&Tp=
Thank you very much!!

I rebuilt my TT at 85K miles - new bearing and coupler - hopefully after the swap - she'll hold up to the task at hand.

Last edited by Drewster67; Sep 26, 2016 at 01:00 PM.
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Old Sep 26, 2016 | 10:14 AM
  #93  
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Originally Posted by turboffr
Well after a slight setback, car is back up running. After 250 miles, it started making a grinding noise when taking off in first so I had to pull the drivetrain. I found that the pilot bearing was disintegrated and when spinning the torque tube input shaft it was making a noise and wobbled bad. Pulled the torque tube apart and found aluminum shavings inside (the bearing was junk). I guess the 114k mile torque tube didn't like all the new power from the LS3. I found a torque tube with only 15k miles on it, and also put a new pilot bearing in which meant pulling headers off, bellhousing and clutch. Lots of work and I did it on jackstands. Not too bad and was actually easier then pulling the motor.

While I had the drivetrain out I drained the transmission fluid and gear oil and replaced them with Redline fluids. I also installed the Hinson transmission mount.
How long did it take to pull the drivetrain for you being a first timer? How many jacks did you use?

Last edited by tommypenguin; Sep 26, 2016 at 10:14 AM.
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Old Sep 26, 2016 | 01:17 PM
  #94  
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Originally Posted by tommypenguin
How long did it take to pull the drivetrain for you being a first timer? How many jacks did you use?
I think it was about 3 hours to pull it out. I used 4 jackstands (with rear up slightly higher than front). I used 2 jacks getting it out (one under cradle with a 2x8 board, and another supporting the trans. When I put it back together I installed the torque tube by itself, then the trans & differential together, then finally the cradle. Much more managebale for 1 person to do it that way. I did buy a 450 lb. low lift transmision jack from harbor freight which made it much easier than trying to use 2 jacks.
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Old Oct 12, 2016 | 03:49 PM
  #95  
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I notice you went with the LS7 Timing gear & damper. When I did my LS3 conversion back in 2010, I used the LS3 versions. I've since read that the LS2 damper is better than the LS3... is the LS7 gear & damper the most reliable of the lot?
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Old Oct 12, 2016 | 04:22 PM
  #96  
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Originally Posted by JimMueller
I notice you went with the LS7 Timing gear & damper. When I did my LS3 conversion back in 2010, I used the LS3 versions. I've since read that the LS2 damper is better than the LS3... is the LS7 gear & damper the most reliable of the lot?
LS2 & LS7 are the same design
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Old Oct 13, 2016 | 10:12 PM
  #97  
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Man this thread has helped me. I'm gathering parts for my ls3 swap now.

Retiring my old 180k mile ls1 (nothing actually wrong with it, I want more power).

I upgraded my T56 for a RPM and my diff is built by RKT, so it's ready for it.
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To LS3 swap underway......

Old Oct 13, 2016 | 10:54 PM
  #98  
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Originally Posted by sk61380
Man this thread has helped me. I'm gathering parts for my ls3 swap now. Retiring my old 180k mile ls1 (nothing actually wrong with it, I want more power). I upgraded my T56 for a RPM and my diff is built by RKT, so it's ready for it.
Any questions along the way, just let me know and I'll try to help. You will love the LS3!
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Old Oct 18, 2016 | 02:39 PM
  #99  
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Originally Posted by turboffr
Any questions along the way, just let me know and I'll try to help. You will love the LS3!
First question.

Do you have a link to the correct injector adapters? The site isn't very specific.
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Old Oct 18, 2016 | 03:06 PM
  #100  
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Originally Posted by sk61380
First question. Do you have a link to the correct injector adapters? The site isn't very specific.
Racetronix RCS-039

-or-

https://m.summitracing.com/parts/fms-m-14464-a8
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