So, I guess LS1's run a lot of slack in the timing chain?
05-21-2005, 10:59 PM
#1
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So, I guess LS1's run a lot of slack in the timing chain? Took the GTO apart today, to install LPE GT2-3 cam. Noticed that the timing chain had quite a bit of slack in it. Most I have ever seen in a timing chain before actually.... 
Does the LS1 just run more slack than others?
Car only has 3500 miles on it, so I know it isn't wear, and the car ran strong before. Oh well guess I won't worry about it.....
Does the LS1 just run more slack than others?
Car only has 3500 miles on it, so I know it isn't wear, and the car ran strong before. Oh well guess I won't worry about it.....
05-21-2005, 11:21 PM
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About a 1/2 inch movement is expected.
I am not an expert, but I was told that LS1s are specifically designed to have a slightly slack timing chain, and that too tight is not recommended. Unfortunately, I cannot recall the details surrounding that - I was told by a friend who is a mechanic and has access to all-data software that there is a specific mention of LS1s and aftermarket timing chains being too tight and causing internal damage. It was recommended that 1/4 inch slack be the tightest it should be, sligfhtly slacker is better.
But I would do more research on this matter and not take my word on it. I know it is true, but I don't have the info to back it up. Perhaps someone else does?
I am not an expert, but I was told that LS1s are specifically designed to have a slightly slack timing chain, and that too tight is not recommended. Unfortunately, I cannot recall the details surrounding that - I was told by a friend who is a mechanic and has access to all-data software that there is a specific mention of LS1s and aftermarket timing chains being too tight and causing internal damage. It was recommended that 1/4 inch slack be the tightest it should be, sligfhtly slacker is better.
But I would do more research on this matter and not take my word on it. I know it is true, but I don't have the info to back it up. Perhaps someone else does?
05-22-2005, 02:35 AM
#6
Originally Posted by 94bamf
Took the GTO apart today, to install LPE GT2-3 cam. Noticed that the timing chain had quite a bit of slack in it. Most I have ever seen in a timing chain before actually....
Does the LS1 just run more slack than others?
Car only has 3500 miles on it, so I know it isn't wear, and the car ran strong before. Oh well guess I won't worry about it.....
Does the LS1 just run more slack than others?
Car only has 3500 miles on it, so I know it isn't wear, and the car ran strong before. Oh well guess I won't worry about it.....
hooking it up arent you?
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05-22-2005, 07:29 AM
#11
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Originally Posted by Gary Z
I recently replaced my timing chain (at 30k miles) with a new LS2 chain and the amount of slack seemed very much like the original's.
How does that one idle, I pretty much wanted a dead stock idle.
05-23-2005, 03:15 PM
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94bamf,
Although you started this thread, I still feel like I would be guilty of hijacking if I described my cam in a timing chain thread. I will post a description sometime soon.
-Gary
Although you started this thread, I still feel like I would be guilty of hijacking if I described my cam in a timing chain thread. I will post a description sometime soon.
-Gary
05-23-2005, 03:59 PM
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Originally Posted by 94bamf
My wideband is gonna be here Tuesday.......
This fat bitch is gonna run 12's........
ROFL! My fat bitch should be into the 12's soon =)
Fatties need love to!
06-01-2005, 01:46 PM
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Where is everyone getting the ls2 timing chain? This chain fits the stock ls1, correct? I read on here that you can get one from SDPC (scoggins dickey) for around $28, but doing a search over there came up w/ no results 
...a little help here, maybe a part number? (doing a cam swap soon....) Thanks!!!
...a little help here, maybe a part number? (doing a cam swap soon....) Thanks!!!
06-01-2005, 02:01 PM
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wonderful...
Originally Posted by Gary Z
Yes, the LS2 timing chain (GM part number 12586482) is a direct replacement for the LS1 chain.
06-01-2005, 11:05 PM
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I have been thinking why the chain inheranted a slack condition, unless its just a design in the cut and or make of the gear, Could it be a way of eliminating excessive harmonics from the crank to the valve train. The old school chains had to be tight for the distributer to hold steady. Hell i dont know i would really like to know why!
06-02-2005, 12:15 AM
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Originally Posted by FSU98Formula
This chain fits the stock ls1, correct? I read on here that you can get one from SDPC (scoggins dickey) for around $28, but doing a search over there came up w/ no results ...a little help here, maybe a part number? (doing a cam swap soon....) Thanks!!!
...a little help here, maybe a part number? (doing a cam swap soon....) Thanks!!!You ever find out how much the chain was at SDPC? I'm in a cam swap right now...pm me if you will...thanks alot