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LS2 Timing chain - anything else needed?

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Old Dec 28, 2009 | 12:06 PM
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Default LS2 Timing chain - anything else needed?

Hey guys,

I want to replace my stock timing chain with an LS2 version. Will it fit the stock LS1 sprockets? Will I have any problem with the cover fitting?

Thanks,
Matt
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Old Dec 28, 2009 | 01:16 PM
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A lot of people just replace the chain But I would replace both the cam gear and the crank gear also.
Not doing so is like replacing a bearing and reusing the old race.
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Old Dec 28, 2009 | 02:04 PM
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What's wrong with the LS1 chain?

-Alex
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Old Dec 28, 2009 | 02:08 PM
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Originally Posted by AlexSmith
What's wrong with the LS1 chain?

-Alex
LS1 chains have been known to fail and cause much more than just a broken chain (smashed valves, bent push rods, bent rods, etc). I am just looking for some security since I will be throwing a blower on soon. I will be sending Gene a message in a few!

Thanks Bob!
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Old Dec 28, 2009 | 02:12 PM
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Why not use an LS6 chain then?

-Alex
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Old Dec 28, 2009 | 03:04 PM
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Originally Posted by AlexSmith
Why not use an LS6 chain then?

-Alex
To my knowlege the LS2 is beefier than the LS6. Here is a ccomparison of the LS1 and LS2:

http://texas-speed.com/shop/item.asp?itemid=620
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Old Dec 28, 2009 | 06:45 PM
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Originally Posted by gleds
To my knowlege the LS2 is beefier than the LS6. Here is a ccomparison of the LS1 and LS2:

http://texas-speed.com/shop/item.asp?itemid=620
When I had my engine build, initially I was going with the LS6 also, but Futral Motorsports, recommended the LS2.
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Old Dec 28, 2009 | 06:58 PM
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Originally Posted by AlexSmith
Why not use an LS6 chain then?

-Alex
The OE LS6 chain was the same as the LS1...but about 4 years ago, the beefier LS2 chain superceded all of them as the stock replacement part for all gen3/4 LS engines.

You don't NEED to replace the sprockets, the chain is the same length/pitch...but if your stock parts show any wear, it would be a good idea to renew them.


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Old Dec 30, 2009 | 11:00 AM
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Good deal then. I am guessing that the LS2 chain is the same used in the LS3 then correct?

-Alex
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Old Dec 30, 2009 | 11:41 AM
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If you are looking for some extra insurance might want to check out the katech C5 timing chain. Same one they used on the C5R race cars. Never broke a chain. More costly but may be worth it.

Might also want to consider installing a timing chain tensioner. Bill Curlee put up a good post on this subject.
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