When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Going through some old parts I see It. My memory isn't what it used to be. I also have an LS3 sprocket and it is different. This could defiantly cause problems for the OP. The LS1 has that retainer plate.
The stock LS1 doesn't have a thrust bearing at all (the one on the right). If you flip it over it has a spiral groove for oiling (probably designed for less than 6,500rpms.).
Flip those two pictures over and it tells a story.
The Cam is designed to pull slightly backwards but not much.
[QUOTE=T.J.;1593855803]Broken sprocket (Sealed Power brand)
Why did they change the sprocket design?
You installed an LS2 timing gear setup, this is a picture of a stock single roller race gear for an LS1
Here is a picture of a timing gear installed on an LS2, see the difference?
Now what we can see is you had what I believe is called "cam walk." By design of the timing gear you installed, the cam was actually sitting in the block off position because of the spacer or thrust built into the gear. If you look at your original picture of the gear, you might have noticed the key was not fitting correctly inside its keyway and was not perfectly centered or mated.
Next time make sure you buy the correct parts for your engine and triple check everything.
Last edited by midnight01; Jan 13, 2017 at 08:47 AM.
The stock LS1 doesn't have a thrust bearing at all (the one on the right). If you flip it over it has a spiral groove for oiling (probably designed for less than 6,500rpms.).
Checked my original LS1 gear and no relief for torrington bearing. The JP Performance timing set that I replaced it with had the torrington bearing.
You installed an LS2 timing gear setup, this is a picture of a stock single roller race gear for an LS1
Here is a picture of a timing gear installed on an LS2, see the difference?
Now what we can see is you had what I believe is called "cam walk." By design of the timing gear you installed, the cam was actually sitting in the block off position because of the spacer or thrust built into the gear. If you look at your original picture of the gear, you might have noticed the key was not fitting correctly inside its keyway and was not perfectly centered or mated.
Next time make sure you buy the correct parts for your engine and triple check everything.
I went to rockauto and summit's websites and both show the same sprocket that I purchased from rockauto.
I went to rockauto and summit's websites and both show the same sprocket that I purchased from rockauto.
I cant count how many times I have bought items and they ended up being wrong, case in point was drilled and slotted rotors just recently, they had the correct part number and year, but did not fit. When we looked at the part number on the rotor, they were for a hyundai. the box and packaging said 1997-04 Chevy Corvette, the actual part said otherwise.
I went to Rockauto and looked up my year timing gear and you are correct, they showed 5 different gears that all looked different with no true description. I looked up yours as well and they have the same timing gears. I take back my smart *** remark and apologize. It looks like you got a bad timing gear is all. I double checked again and found the replacement timing gear for your vehicle is Cloyes Gear & Product C-3092 3-Piece Timing Set. it looks exactly like the stock one in your original picture. There are about 10 different ones you can buy for our LS1's its enough to make your head spin. Here is a picture of the Cloyes one
I don't know what to buy for the sprocket since just reading
INSTALLATION NOTE:
(A) Not applicable to OEM Chevrolet and Chrysler hydraulic roller-lifter camshaft equipped engines.
(B) For OEM hydraulic roller lifter cams only
For the edelbrock application I posted earlier and that is if the sprocket I installed was an incorrect part.
I had somewhat same thing happen back in the 80s. Got cam and gears for my ponitac 400 at supershops. Installed lined up great but car would not rev past 1500 rpms. Took it to Jakies Automotive and they told me supershops sold me a rear for a chevy. Only plus side it did not do any damage.
for the sprocket since just reading 
