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Identify this rod

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Old Jan 10, 2021 | 04:36 PM
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Default Identify this rod
Helping a buddy who scored a free LS3. It was removed because of a busted valve spring.....no damage, just a busted beehive spring.




Pistons are Probe .005” oversize.
No name rod. My guess is Chinese.
ARP 8470 bolts.
Anyone familiar with these?

Crank is also forged. It’s an Eagle 4340.

Bearings look ok, not great.

No-name single bolt cam, it was a bugger to get out. #4 journal wouldn’t go through the front 3 bearings w/o tapping it through from the back.

Dipshit who assembled it used locktite on the rod bolts......rtv everywhere.

Sheesh

Ron



Last edited by RonSSNova; Jan 10, 2021 at 07:01 PM.
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Old Jan 10, 2021 | 11:13 PM
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Another question. The heads are 821.
Is it normal for the intake guides to appear knurled or grooved?

First set I've worked on.
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Old Jan 11, 2021 | 01:22 AM
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Generic Chinese rods.
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Old Jan 11, 2021 | 11:09 AM
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A highschool friend who used to build killer bike engine used to use locktite on rod brgs LOL
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Old Jan 11, 2021 | 11:32 AM
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Originally Posted by 1FastBrick
Generic Chinese rods.
As I thought. If i’m The one to reassemble, I’ll have to figure out the torque on the bolts. No funny bearing wear, so I assume they are ok.
Thx
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Old Jan 11, 2021 | 01:30 PM
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Cam turned out to be a Comp. Just never seen one marked that way.

222/234 .566/.576 113

Single bolt cam.

Quite mild.

PAC 1219 a good spring for this? I’m assuming it had Comp beehives in it, iirc they had breakage issues.
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Old Jan 11, 2021 | 10:51 PM
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Originally Posted by RonSSNova
Cam turned out to be a Comp. Just never seen one marked that way.

222/234 .566/.576 113

Single bolt cam.

Quite mild.

PAC 1219 a good spring for this? I’m assuming it had Comp beehives in it, iirc they had breakage issues.
Edit: Never mind i see one broke already.
PAC's will work...
Last edited by 1FastBrick; Jan 11, 2021 at 10:53 PM. Reason: Never mind...
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Old Jan 19, 2021 | 10:22 PM
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Originally Posted by RonSSNova
As I thought. If i’m The one to reassemble, I’ll have to figure out the torque on the bolts. No funny bearing wear, so I assume they are ok.
Thx
You can usually get it from ARP if you have the bolt diameter, grade, and underhead length of the bolt. The last set of Scat rods I used had 7/16” ARP 8740 bolts and were about 63ft-lbs with ARP Ultra Torque lube.
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Old Jan 20, 2021 | 09:52 AM
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Thanks KCS. That is my plan when we get to that point. Some quick research showed that same number. But I haven’t measured the under head length yet.

Ron
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Old Jan 20, 2021 | 09:55 AM
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Originally Posted by RonSSNova
Another question. The heads are 821.
Is it normal for the intake guides to appear knurled or grooved?

First set I've worked on.
Do you have a pic of this?
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Old Jan 20, 2021 | 07:30 PM
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Originally Posted by WE TODD DID
Do you have a pic of this?
I asked my cylinder head guy, he said it’s the way they make the 823 heads.

Aluminum Head Rebuilders here in Portland. He is an LS fan!

I’ll get a photo this evening.
Last edited by RonSSNova; Jan 20, 2021 at 08:22 PM.
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Old Jan 20, 2021 | 10:19 PM
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Photo of the intake guide


Last edited by RonSSNova; Jan 20, 2021 at 11:00 PM.
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