Was wondering how much slack is acceptable? Thought it would have been allot more difficult getting the timing chain on, but theres about 3/8" of slack in the chain.

Wondering if a new upper and lower gear set would help, or am I just being paranoid?

 

That's a good deal of slack. I'd replace the timing gears with new GM units at the very least. That's what $35-40?

 

with your timing lined up and your chain installed, just turn your crank just a tiny bit and I bet all the slack will go away.

 

Put a Gen 4 sprocket on it out of a LS2 or LS7 and I bet that will help.

 

That's a lot of slack. I measured the slack on my JP Performance 5618T and the slack was about .310" when the parts were brand new. The Cloyes hex-adjust which replaced it has around .100" slack. I could do an actual measurement with calipers if you wanted. You could see pictures of the JP in the link below if you were interested.

https://ls1tech.com/forums/generatio...s-typical.html

 

Yeah, the slack I had with my Rollmaster was virtually nonexistent. And it was hard to get it on the camshaft.

 

Thats normal for an OEM chain from what I've seen. They make a damper you can install to help remove some slack as well. I believe running the chain that loose is what took out my motor eventually. I'd run a tighter set or a double roller.

 

I'll reinstall it and spin it a bit to see if it goes away, but im gonna go ahead and order a newer upper sprocket anyway and see if that helps. Or maybe try and get my hands on a Cloyes set.

I do have a dampener from my previous block, but i want the majority of the slack gone first.

 

I run that damper with a double roller...

 

Do it once, do it right! Cloyes hex a just gears with a Cloyes C5R extreme duty chain. use the damper if you have it as well.

Dual chains may look tight when new, run them 20/30k & see how slack they are.
I broke a dual Rollmaster & the dual inmotion chain that got taken off just recently & replaced with the Cloyes was sloppy also.

 

I talked to Katech about that Cloyes combo. they are not the prestigious C5R chains that Katech sells. They are some other chain maybe still an IWIS but not what comes from Katech as the C5R chain.

 

That Cloyes combo is $250. It better have the C5R chain on it.

And duals should have less slack in them after X number of miles vs a single row. Did you have the Rollmaster with prestretched IWIS chain?

 

I have no idea what or who you talked to about this...BUT what I said was, the Cloyes Hex a Just gears with the 'EXTREME DUTY' C5R chain is what to use.

If you asked about a C5R chain then possibly you will get the weaker thinner option.

Contact TSP or Summit which is where I got mine....

 

If you seen how much thicker this chain is compared to the LS2 chain & how much tighter I believe you would re-address this comment.

My thoughts were always, a double has to be better than a single, but not now with the extreme duty C5R.

 

I spoke with Katech themselves. This was more for an fyi, so people do not think they are getting the same Katech C5R chain. . When you say C5R chain it is more widely known as the one from Katech. Feel free to call them and get the same response.

 

If you want to run a single chain the katech c5r iwis chain with the ls2 guide is the way to be. I compared it to my stock ls2 chain and it's considerably more beefy.

 

Texas Speed


Cloyes LS1/LS2-1x/LS6 Race Billet True Roller Single-Roller Timing Set, Includes Extreme Duty C5R Chain & 9 Keyway Sprocket, 3-Bolt Cam

item# 9-3658TX9Z

Cloyes Race Billet True® Roller Speed Sets are race ready. Sprockets are machined from premium billet steel on Cloyes’ state-of-the-art CNC equipment ensuring the highest quality product and eliminating inconsistencies found in other aftermarket sets. Both sprockets are induction hardened and oil-quenched using Cloyes’ in-house multi-stage heat treat process. The Premium True® Roller chain features superior strength with full roller action. Side plates are cut and shaved from high strength steel and heat-treated for maximum fatigue resistance.The .250” rollers are “cold rolled” and hardened to exacting standards increasing load and RPM capabilities. Race Billet sets are available with 3 or 9 keyway crank sprockets offering multiple valve timing settings. All of Cloyes’ Race Billet sets are hand-matched at Cloyes’ manufacturing facility to qualify center distance and run-out. This Cloyes exclusive ensures that you get the very best with every set.
Chevy (non factory roller) and BB Chrysler sets include captured needle bearing.

Fits: 98-02 Camaro, 97-04 Corvette, 2005+ Corvette w/ 1x gear, 99-11 Trucks, 04-06 GTO, 06-09 Trailblazer SS w/ 1x gear

Price: $267.95

 

I emailed Cloyes about trying to get a set of gears only from them but wasnt able to because their kits are hand matched. Both the Katech and Cloyes top of the line chain, the "Z" chain are both made by IWIS. Though maybe not the same exact chain, they are supposedly equals. The "Z" chain is noted with a Z in Cloyes part numbers


Going to go ahead and get a Cloyes set and be done with it.

 

Just me, but when I did my ls2 chain I got it from the sale thread Yank had. I opted for new billet gears from them as well. It also came with a Torrington bearing (which was a nice surprise)

I didn't have hardly any slack in mine at all. As a matter of fact, I played hell getting the cam gear on bc the chain was a bit tight and had to be just "perfectly" lined up to slide the gear on.

 

I measured the slack on my Cloyes 9-3153 hex adjust set yesterday because I was curious. The slack was .117" from slack to tight with the calipers in roughly the same position as the pictures shown in the thread I linked above.