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LS2 "Good" timing chain part number

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Old Jan 4, 2022 | 10:28 PM
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Default LS2 "Good" timing chain part number
Edit: I think I misspoke, nobody is understanding what I am asking. I do not have an LS2, I have an LS3. I've read that the factory ls2 chain was an upgrade. What is the part number for the actual GM LS2 Factory/OEM chain, I cannot find it?

-End edit

This is kinda a mystery to me... many between ls1tech, camaro5 and here say the LS2 chain is the 'upgrade' because its thicker. What's the actual part number for a non-knockoff ls2 chain? Why is it so hard to find? The LS2 dampner is easy to find. The best I can find is an acdelco number:

ACDelco 12646386


If it matters I have a 650-700rwhp build in the works. Not really sure if the ACDelco is a true "GM" sourced part or some third party knock off in the 'ls2 style'.
Last edited by Vettelet; Jan 5, 2022 at 09:06 PM.
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Old Jan 5, 2022 | 07:08 AM
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I use a Hinson C5R chain.
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Old Jan 5, 2022 | 09:07 AM
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Take you pick...

https://cammotion.com/timing-chains-components/

Super strong version:
https://cammotion.com/timing-chains-...-timing-chain/
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Old Jan 5, 2022 | 12:50 PM
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Rollmaster double roller is a good chain, too. Don't know if they're available as a single chain, or not. C5R chain is also good.....
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Old Jan 5, 2022 | 05:47 PM
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IWIS makes premium drop-in chains
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Old Jan 5, 2022 | 09:05 PM
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I think I misspoke, nobody is understanding what I am asking.

I do not have an LS2, I have an LS3. I've read that the factory ls2 chain was an upgrade.

What is the part number for the actual GM LS2 Factory/OEM chain, I cannot find it?


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Old Jan 6, 2022 | 08:59 AM
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Originally Posted by 3X2
I use a Hinson C5R chain.
Same here
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Old Jan 6, 2022 | 09:41 AM
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12646386

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Old Jan 6, 2022 | 11:55 PM
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Ls2 chain is a downgrade, katech c5r is an upgrade
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Old Jan 7, 2022 | 06:59 PM
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So the ACDELCO is the GM? Thanks!
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Old Jan 7, 2022 | 07:00 PM
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Originally Posted by 493lszosix
Ls2 chain is a downgrade, katech c5r is an upgrade

Its a downgrade to the OEM ls3?
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Old Jan 8, 2022 | 08:40 PM
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Originally Posted by Vettelet
Its a downgrade to the OEM ls3?
yes, there have been many ls2 chain failures, the c5r is only $150 so no reason to skimp out if you’re going for 650+hp
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Old Jan 8, 2022 | 09:06 PM
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I’m going with C7R timing chain.
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