Cam Question
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
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From: corpus christi Texas
Cam Question
I have a 08/LS3:When i had a Com cam installed it was a 1 bolt set up.I know nothing about the cams now days.All i know that when i picked up my car & i took the old parts with me:I just learned from this forum that the LS2 had a 1 bolt gear & the LS3 a 3 bolt gear.In the parts that i came back with there was a gear & 2 large bolts + the springs,push-rods & etc.Question is:Why did they put a 1 bolt set up in my LS3 ? Is that the way it is and can i expect it to hold up? Thanks
Le Mans Master
Joined: May 2011
Posts: 5,022
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From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
I have a 08/LS3:When i had a Com cam installed it was a 1 bolt set up.I know nothing about the cams now days.All i know that when i picked up my car & i took the old parts with me:I just learned from this forum that the LS2 had a 1 bolt gear & the LS3 a 3 bolt gear.In the parts that i came back with there was a gear & 2 large bolts + the springs,push-rods & etc.Question is:Why did they put a 1 bolt set up in my LS3 ? Is that the way it is and can i expect it to hold up? Thanks
The 3 bolt cam gear came on the LS1/6/7 and has 3 smaller bolts instead of 1 big one. When I ordered my cam/cam kit, I specifically asked for a 3 bolt cam core, ARP cam bolts, and an OEM GM 3 bolt cam gear.
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
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From: corpus christi Texas
Well how come i received a gear & 2 bolts back? There"s a tread on this forum that i read the other day about cams & I"m sure it said the LS2 used 1 bolt.The tread is about the guy wanting to put a LS9 cam in a LS2.If you can find that tread please let me know..Thanks
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
See this page for all your questions answered courtesy of lingenfelter.
http://www.lingenfelter.com/page/ls-...lector-id-page
http://www.lingenfelter.com/page/ls-...lector-id-page
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
See this page for all your questions answered courtesy of lingenfelter.
http://www.lingenfelter.com/page/ls-...lector-id-page
http://www.lingenfelter.com/page/ls-...lector-id-page
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
It would be strange if the B gear was returned because that's the gear you need if you're an LS3. I believe the A gear is for the LS2 as the cam position sensor is different in the 2 cars.
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
OK Justinjor:I have the gear in front of me now.It measures a little over 5 1/4" across & it is a one bolt gear part #1259`689.What gear is it ?
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Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
So the gear that is NOT in your car is the A gear? That is correct. Your shop should have installed "B" in your car now and given you the "A" leftover. You should also have 2 leftover bolts, big ones, that resemble each other.
Thread Starter
Le Mans Master
Joined: Jan 2008
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From: corpus christi Texas
Justinjor:I will try to figue out later on how to upload ,but like i said,the "A" gear is the one i have here,it has that slot right above the hole where the bolt goes in.What gear is that & why was it changed?
Last edited by Cherokee Nation; Oct 21, 2011 at 03:34 PM. Reason: change a word
Le Mans Master
Joined: May 2011
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From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
The slot right above the bolt hole is the indexing mark. There is a pin that protrudes from the front of your camshaft and ensures the timing marks are correct relative to the lobes and crank.
The front of the cam can have a single bolt pattern, or a 3 bolt pattern, depending on the year. It looks like GM used to put the 3 bolt in, switched to the single bolt for the LS2, then they changed right after the LS3 was introduced.
The front of the cam can have a single bolt pattern, or a 3 bolt pattern, depending on the year. It looks like GM used to put the 3 bolt in, switched to the single bolt for the LS2, then they changed right after the LS3 was introduced.
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
The slot right above the bolt hole is the indexing mark. There is a pin that protrudes from the front of your camshaft and ensures the timing marks are correct relative to the lobes and crank.
The front of the cam can have a single bolt pattern, or a 3 bolt pattern, depending on the year. It looks like GM used to put the 3 bolt in, switched to the single bolt for the LS2, then they changed right after the LS3 was introduced.
The front of the cam can have a single bolt pattern, or a 3 bolt pattern, depending on the year. It looks like GM used to put the 3 bolt in, switched to the single bolt for the LS2, then they changed right after the LS3 was introduced.
Le Mans Master
Joined: May 2011
Posts: 5,022
Likes: 18
From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
You're fine.
My car is an 08 as well and it had the single bolt cam gear. If your car is running and you have the single bolt cam gear as a leftover, then they put on a 3 bolt gear, which is correct.
I would assume the shop ordered the correct 3 bolt cam gear when they ordered the cam and the supporting mods.
Got it dyno'ed yet?
My car is an 08 as well and it had the single bolt cam gear. If your car is running and you have the single bolt cam gear as a leftover, then they put on a 3 bolt gear, which is correct.
I would assume the shop ordered the correct 3 bolt cam gear when they ordered the cam and the supporting mods.
Got it dyno'ed yet?
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
You're fine.
My car is an 08 as well and it had the single bolt cam gear. If your car is running and you have the single bolt cam gear as a leftover, then they put on a 3 bolt gear, which is correct.
I would assume the shop ordered the correct 3 bolt cam gear when they ordered the cam and the supporting mods.
Got it dyno'ed yet?
My car is an 08 as well and it had the single bolt cam gear. If your car is running and you have the single bolt cam gear as a leftover, then they put on a 3 bolt gear, which is correct.
I would assume the shop ordered the correct 3 bolt cam gear when they ordered the cam and the supporting mods.
Got it dyno'ed yet?
Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
Forgot: Like i said i do have 2 large bolts left over(same size)Last question:Where did the 2 bolts come from?
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Thread Starter
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas