When I saw how much slack was in the stock chain I said there is no way in the world I would put it back on. Double roller chain for me, I feel much safer.

 

Double chain is overkill unless you want to degree your cam and need an adjustable.

Even Lingenfelter puts stock chains on their boosted setups.
The LS2 is way beefier.

See for yourself:



Bottom one is LS2 top old LS1

 

Yes, many have done this before.

Off topic here, but why do you capitalize every single first letter of a word?? That makes it hard to read.

 

OK guys so say i decide to do a ls2 timing chain. is there a way that i can pull the oil pump off and not have to remove the pick-up tube and be able to slip on the new timing chain?i dont know was just a guess never done a swap. I have decided to leave on my stock pump. I mean it only has 22k.
thx rob

 

You're gonna have to remove the pickup tube because it holds the pump pretty solid to the block and is blocked from being moved/bent by the oil pan. Sorry man, there's no way around that one.

 

Well since it need to be removed to get the new chain on, is it possible if you can tell me if i have the newer style of ls6 pump on my car from factory?is there a cut off date on the manufacturing?by the vin #? how can i tell?
thx rob

 

part # on all "LS6" replacement LSx pumps is # 12563964

 

The stock timing chain on my 01 ss was pretty slack when i went to change out my cam. I went and got a replacement from an auto parts store and it was more loose then the original. I ended up putting the new gears on and used my stock chain. Its not a necessary thing to change but if your going too, deffinetly use the LS2 chain or a double roller, DO NOT buy an aftermarket stock one.

 

ive got a 10K mile 2004 6.0 and the chain looked like it was about to hope off. tho the motor is spotless and there is no sign of broken parts.
im in the middle of a cam swap right now.

 

I have a NHRA Edition 2000 Formula. It was produced 5/00. It has 241 head castings. Does it also have the LS6 style oil pump? I will be doing a cam swap late summer or early winter. Just curious if the heads upgrade was combined with the oil pump upgrade. Thanks for any info.

I had a 2000 Trans Am produced in 8/99. It was not as strong with the same mods. Would the upgrades that may or may not have been installed for a late year '00 be a factor.

 

FWIW I just did my cam, 02 WS6. Has 31k miles on it. I bought a new LS2 chain and sprockets for same reason - since I'm in there ... But when I inspected my old chain it was like new! No slack, sprocket teeth perfect. So I left it on and I'll just keep the new set for another time.

 

i have a '01, stock chain, stock pump, lots of rpm, stiff springs, big cam, lots of passes, no problems.

 

FYI, the part# stamped on the LS6 oil pump I just bought fron SDPC is 12556436.
2004 stamped on it also.

 

When i saw the slack on my stock chain, i wasted no time dropping the oil pan and pulling the oil pump. The LS2 chain (pt#12586482 from SDPC $28.25 ) is worth the peace of mind for me. You can see in the pic the difference. It was just personal preference for me.

 

Has it ever been proven that said "slack" on a LSx new (older model) chain wasn't designed for a "certain purpose"??

Personally, I'm suspicious about tight chains (double rollers) and cam bearing life.

 

Not that I now much, but that seems logical......hmmm

 

ill have to agree. im no engineer, but it makes sense.
my 10K mile motor had a lot of slop in the factory chain. my double roller is nice and tight. flexible, but not sloppy like the stock chain.
if i could figure out this clearance problem with my tranny, id have her running and out driving, not posting on the internet.

 

Pretty strong proof right there

 

seems logical to me, but for those who used the ls2 was there much slack in that chain when you put it on or was it tight?
thx rob

 

This is actually a pretty informative thread. I'm working up towards my cam swap sometime this summer and was wondering about the pump and chain. I fully intend on replacing the pump and chain just because I'll have the motor torn down that far. Why not do it if it's right there in front of you? Is the pump tube really that big of a pain? That's a question and not being sarcastic. From what I've read the bolt is a pain to get to but is that it? Is that one bolt keeping people from replacing parts while the engine is apart?