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Second change on rebuilt LS #5442713 05/30/20 07:05 PM
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KirklanC Offline OP
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This is a fresh rebuild LY6 6.0 clevite main and king rod bearings. I am using 10-40 conventional oil. 1st change was at 100 miles. Had a bit of the same flecks in the filter. This oil has 800 miles on it.

What do y'all think. I was surprised to see flecks.

I will put 1500 miles on this fresh oil then switch to synthetic.

IMG_20200530_164611.jpgIMG_20200530_164608.jpgIMG_20200530_164606.jpgIMG_20200530_164603.jpgIMG_20200530_164600.jpgIMG_20200530_164545.jpgIMG_20200530_164543.jpgIMG_20200530_164538.jpg
Re: Second change on rebuilt LS [Re: KirklanC] #5442715 05/30/20 07:06 PM
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KirklanC Offline OP
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The rest of the filter pics. Same filter just no flash and flash.

IMG_20200530_164536.jpgIMG_20200530_164533.jpgIMG_20200530_150849.jpgIMG_20200530_150852.jpg
Last edited by KirklanC; 05/30/20 07:07 PM.
Re: Second change on rebuilt LS [Re: KirklanC] #5442721 05/30/20 07:14 PM
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KirklanC Offline OP
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This is the 1st oil change at 100 miles with 10w30

IMG_20200414_141745.jpgIMG_20200414_231155.jpgIMG_20200414_231157.jpgIMG_20200414_231159.jpgIMG_20200414_231204.jpgIMG_20200414_231209.jpg
Re: Second change on rebuilt LS [Re: KirklanC] #5442730 05/30/20 07:32 PM
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oldhp Offline
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Keep doing what you're doing. I've scrubbed many blocks down by hand, oil galleys, lifter galleys etc after they were hot tanked. Still got some stuff in the filter. I always changed oil/filter right after initial cam break-in and then 500,1000, 2000 miles, but these were all flat tappet cams.
I think you're doing it right the way you're going.
Good Luck!!! cheers


"None of us are getting out here alive...drink that beer...eat that pizza...drive that Hot Rod"
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"I don't run...........I just quietly wait"
Re: Second change on rebuilt LS [Re: oldhp] #5442771 05/30/20 08:35 PM
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KirklanC Offline OP
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I get butterflies every time I open a can.
I spent weeks over thinking bearing clearances.
Thank you for the reassurance.
1st tow trip is this week. Wish me luck

Re: Second change on rebuilt LS [Re: KirklanC] #5442772 05/30/20 08:36 PM
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Zaedock Offline
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Looks like the filter is doing it's job.
These engines don't need anything special. GM doesn't spec a 40wt, however.

With 900 miles, I would run the oil to OLM and drive on. The filter will have less particles over time.


2019 Escape EB AWD/2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2015 Chrysler 200 Limited
1975 Ford Bronco/1959 Willys CJ5/Tube Rock crawler
Re: Second change on rebuilt LS [Re: KirklanC] #5442781 05/30/20 08:51 PM
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Zaedock Offline
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Originally Posted by KirklanC
I spent weeks over thinking bearing clearances.


Did you rebuild this yourself? The clearances on this engine are pretty typical.

This engine is GM's workhorse. It's relatively low output vs displacement. I don't think you have anything to worry about.


2019 Escape EB AWD/2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2015 Chrysler 200 Limited
1975 Ford Bronco/1959 Willys CJ5/Tube Rock crawler
Re: Second change on rebuilt LS [Re: Zaedock] #5442792 05/30/20 09:19 PM
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KirklanC Offline OP
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Yep, the LSA supercharger was hard on the 5.3 rings so I got a LY6 and built it myself.
.020 over
Forged pistons and rods.
Ls9 cam
9.2 compression
Long tube headers 3.5 inch exhaust
LSA blower at 12 psi.
6L80e
32 inch tires 4x4
Methenol injection

472tq @3200
473hp @ 6000
Conservative tune for towing in the heat.

4.56 gears are next

My clearances are .0026 0029
Melling high flow high psi pump with 40 weight it idles at 35 -38 psi hot.

Still working on the tune to make it shift smoother.

Re: Second change on rebuilt LS [Re: KirklanC] #5442799 05/30/20 09:30 PM
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Zaedock Offline
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The clearances for your application seem fine. What did you use for mains? GM coated Gen V LT1's seem to be in with forced induction.


2019 Escape EB AWD/2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2015 Chrysler 200 Limited
1975 Ford Bronco/1959 Willys CJ5/Tube Rock crawler
Re: Second change on rebuilt LS [Re: Zaedock] #5442822 05/30/20 10:43 PM
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KirklanC Offline OP
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Clevite mains
King rods
The boost is why I opted for larger clearances
I also need a big engine oil cooler.

Re: Second change on rebuilt LS [Re: KirklanC] #5442840 05/30/20 11:40 PM
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Zaedock Offline
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Yep, missed reading that in the first post.

Looks like you're on track. A big oil cooler will depend on Oil temp.


2019 Escape EB AWD/2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2015 Chrysler 200 Limited
1975 Ford Bronco/1959 Willys CJ5/Tube Rock crawler
Re: Second change on rebuilt LS [Re: KirklanC] #5442858 05/31/20 12:49 AM
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clinebarger Offline
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I don't see anything alarming for a new build. You will definitely need an oil cooler towing under boost!!! 12 psi is a little much without piston piston cooling nozzles.
I was a Magnuson dealer/installer for several years & 6-8 psi was all a LQ4 would take without piston crown overheating issues while towing.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Second change on rebuilt LS [Re: KirklanC] #5443275 05/31/20 03:20 PM
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A_Harman Online Content
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Originally Posted by KirklanC
Yep, the LSA supercharger was hard on the 5.3 rings so I got a LY6 and built it myself.
.020 over
Forged pistons and rods.
Ls9 cam
9.2 compression
Long tube headers 3.5 inch exhaust
LSA blower at 12 psi.
6L80e
32 inch tires 4x4
Methenol injection

472tq @3200
473hp @ 6000
Conservative tune for towing in the heat.

4.56 gears are next

My clearances are .0026 0029
Melling high flow high psi pump with 40 weight it idles at 35 -38 psi hot.

Still working on the tune to make it shift smoother.




What are you towing? Do you run premium fuel?

Towing with a supercharged gasoline engine in Arizona heat is about the last thing I would attempt.
How large is the intercooler radiator? It better be about as big as the main engine radiator, perhaps bigger.

Last edited by A_Harman; 05/31/20 03:26 PM.

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1985 Z51 Corvette track car 355/6-speed
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel/NV4500+GV
1972 GMC 1500 shortbed project truck 307/SM465
Re: Second change on rebuilt LS [Re: A_Harman] #5443282 05/31/20 03:28 PM
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KirklanC Offline OP
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I haul a 1000lb side by side in the bed
And tow a 7700lb travel trailer.
I tow up the mountain on e55 and 91 back down.
Methenol injection cools IAT and adds octane to stop detention.

IMG_20180730_195430.jpg
Re: Second change on rebuilt LS [Re: KirklanC] #5443289 05/31/20 03:38 PM
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dave1251 Offline
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I would just use Mobil One 15W50 and change every 4-5K.


make the inside of your engine oil cap white.
don't use.
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