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Discussion Starter · #1 ·
Are the time chains on the 04 z06's diffrent than 03 and lower ls6 chains?

Thanks . . .
 

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I am not sure.

Chevy does list a single roller HD Timing Chain with thicker alloy side plates in the 2003 Performance Parts Catalog. Part # 88958608.

In addition they have a Timing Chain Damper listed. Part # 88958607.

Wether or not these made it into '04 production is still a question.

Most racers just install a Cloyes or Rollmaster double roller. Cloyes has a "hex-adjust" unit that allows timing adjustments without keys.

SLP also has a stouter single roller similar to the Chevy HD one.
 

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Discussion Starter · #3 ·
Thanks for your answer . . . I think I'm gonna go with a Roll Master Double Roller, so when I take my chain out I'll post the part no. stamped on it.
 

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Actually 04 has the upgraded chain and dampner. I would stick with what you have. That is what everyone upgrades to. It is the same as the c6 and the c5r chain. Save the cash.
-matt
 

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In the GM performance parts catalog the c5r timing chain is listed as a single.
 

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ss2z06 said:
In the GM performance parts catalog the c5r timing chain is listed as a single.
That doesn't mean they use it. It might just mean that GM offers that part for use with the C5R block.
 

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I installed a Katech single roller when I did my H/C package this past January. It is much heavier and fit way tighter than the stock chain, which had around 1/2 inch of "slop" in it when I pulled it out at just under 10k miles.
 

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The new GM performance parts chain is the LS2 chain which is thicker than the 03-04 Ls6 chains...

I went with the Rollmaster Heat Treated Double roller - very stout piece and would recommend for $120.
 
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