What replacement LS3 timing chain is the go to? [Archive]

View Full Version : What replacement LS3 timing chain is the go to?

Samckitt

07-20-2022, 09:51 AM

Stock, GM Performance, Cloyes, something else.....?

I saw a Cloyes one that is .005" shorter, does that remove the slack in the chain?

streetk14

07-21-2022, 06:29 AM

Maybe this has changed, but the C5R chain used to be the go-to.

Samckitt

07-21-2022, 07:33 AM

Didn't Katech make those?

Samckitt

07-21-2022, 08:22 AM

Any reviews/comments on this one?

Chevrolet Performance Replacement Timing Chains 12646386

https://www.summitracing.com/parts/nal-12646386

Samckitt

07-22-2022, 05:29 PM

I'm running Summitracing double roller w/ LS2 damper, doing fine and running it like I stole it.

https://static1.pt-content.com/images/pt/2022/07/51139061742_a7d7195eeb-1.jpg

You running a carb? Where are the cam position pads on the cam gear? I read the double roller causes interference with cover and/or oil pump.

carkrazy1987

07-23-2022, 01:11 PM

You running a carb? Where are the cam position pads on the cam gear? I read the double roller causes interference with cover and/or oil pump.

old 24x, cam sensor is built on cam in rear of engine.

Hotwire

07-23-2022, 01:19 PM

You running a carb? Where are the cam position pads on the cam gear? I read the double roller causes interference with cover and/or oil pump.

old 24x, cam sensor is built on cam in rear of engine.

carkrazy corrected me, sorry to mislead..

TANKMASTERJ

07-23-2022, 07:57 PM

I used the Katech C5R on my LS7
Jason

streetk14

07-28-2022, 12:02 PM

Didn't Katech make those?

I believe so. If I were doing a cam swap tomorrow, I’d likely buy another C5R chain. I just used the stock cam and crank sprockets with it. Never heard of any C5R chain failures.

pannetron

08-22-2022, 12:46 PM

I think Katech sold this IWIS chain -- https://briantooleyracing.com/iwis-timing-chain-for-ls-applications-3sr602ps.html

markaaron80

09-23-2022, 10:46 AM

Yes. That is what I replaced the factory new, never run chain with. I didn't like the slack I saw. Maybe it's engineered to have it, but I didn't like it. The CLOYES -.005 fixed my issue.

Samckitt

09-23-2022, 11:29 AM

Yes. That is what I replaced the factory new, never run chain with. I didn't like the slack I saw. Maybe it's engineered to have it, but I didn't like it. The CLOYES -.005 fixed my issue.

From what I read, it is engineered to have the extra slack because aluminum expands more & the slack is needed.