Hey All!

I'm planning to replace the harmonic balancer on my 2000 soon. The engine has just over 100K miles, so I figure I will go ahead and replace the oil pump and timing set while I have access to them. I'm going with a GMPP oil pump (17801830) but haven't decided on a timing set yet.

I'm considering the Cloyes C-3210 set (http://www.summitracing.com/parts/clo-c-3210). Any thoughts or experience with this set? Should I just go with factory GM sprockets with an LS2 chain? Or a double roller (Ideally something that fits under the stock cover without modifications)?

The car is pretty much street driven on the weekends and will be supercharged with an A&A V3 Si if that makes any difference.

Thanks for your input!

 

The latest replacement chain from GM is the LT1 (gm# 12646386)chain from the C7. I haven't compared it to the LS2 chain, but it is a lot heavier duty than the original LS1 chain, and it's a lot tighter fit too. I don't think Cloyes is using any of these chains in their packages yet since it is so new.

I would also install a chain damper while you're in there. My block didn't have the holes drilled for one, but luckily there is a new bracket on the market that allows you to install an LS2 damper on an undrilled/untapped LS1 block by using the bolts on the camshaft plate.
http://www.trickflow.com/partdetail....0&autoview=sku

I got a new oem crank sprocket from lingenfelter.

The original LS1 cam sprocket is no longer available. All the newer replacements are solid/filled in and have reluctors on them for the cam position sensor, as it is mounted in the front of the engine on newer models. This new sprocket still fits under the stock cover, but is a little heavier than the stocker. It was pretty easy for me to find a low mileage used one off a forum member.

Make sure to pin the crank. Good luck!

 

Yes, there are more than several reliable choices for timing chain sets. If going with Cloyes, perhaps consider their HD set which is sold by Lingenfelterhttp (a forum vendor) and can be seen at this link: //www.lingenfelter.com/mm5/merchant.mvc?Screen=PROD&Product_Code=CL Y9-3153A&Category_Code=C237&Store_Code=LPE.

The LS2 assembly has proven more than rugged enough for modified engines as posted here and on LS1Tech. I have used this myself as a second replacement with hardened sprockets. Not willing to wade into the single verses double row debate.

But, no matter what set you purchase, please do install the LS6 timing chain damper if not already installed on your block. My memory is feeble and don't recall if this is part of the 2000 LS1 engine build components. Cheap and effective insurance.

Lastly, if the GM oil pump you purchase is the LS6 unit that too has proven reliable as discussed here and elsewhere. Also, consider one of the lighter underdrive crankshaft pulleys. Several are available from reputable aftermarket manufacturers. It does help the engine spool up/respond quicker. My personal experience has been good with this product and no problems with battery charging issues. It may however affect you future SC modifications so consider seeking advice from the SC manufacturer first. Good luck...

A1

 

CLoyes is the OEM supplier to GM. Unless you need the adjustability, I would just go with a new GM set.

 

Thanks for the GM PN for the new chain - I'll look into it. I am also planning to pin the crank and install a chain damper as you suggest.

I thought about going with that kit, but don't really need an adjustable set.

Ahh, I think I remember hearing that somewhere. So, sounds like the basic Cloyes set I linked to would be the same as the GM set?

 

CLoyes has very good tech support. Call them and find out if there are differences between the LS2 chain and the latest LT1 chain for the C7. I have corresponded with them at length in the past on the IRL chain that is in my car now.

 

Go to Katech engineering and get a C5R chain . I re-used the sprockets with this chain for my H/C/I swap. Went with an ATI damper too. It's supposed to be unbreakable.. whatever, its stronger, thats all that counts, and fits perfect.

Also ^^^ Cloys makes whats called the "Z" chain. Supposedly their version of the C5R chain.

 

I used this single roller set: Rollmaster CS1135
It fits good and snug, no slop in the chain and you get new sprockets. Several of the vendors here have them but you have to ask for it.