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LS3 stock cam specs?

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Old Dec 8, 2007 | 09:55 AM
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Default LS3 stock cam specs?
Can anyone tell me off the top of there head, what the LS3's cam specs are? Any info would be great. Thanks

Joe
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Old Dec 9, 2007 | 10:55 AM
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i would like to know this too..has anybody put one on a cam doctor yet?
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Old Dec 9, 2007 | 12:30 PM
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the cam timing is variuble i see, but just curious on duration @.050, lift, and lsa.
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Old Dec 18, 2007 | 07:40 PM
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204* int
211* exh

.551" int
.522" exh

don't have the LSA, but sure it's in the 116-118 range
Last edited by LSX Wizard; Dec 19, 2007 at 10:51 AM. Reason: fat fingered
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Old Dec 18, 2007 | 11:00 PM
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The LS3 cam is actually a hybrid of the 2 LS6 cams with a different LSA (1 degree more than the LS2).

204/211 .551/.525 117
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Old Dec 19, 2007 | 08:50 AM
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see attached chart as that provides exact valve events including .004 specs
Attached Files
File Type: pdf
GM Cam Spec Comparison.pdf (25.5 KB, 12660 views)
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Old Dec 19, 2007 | 01:40 PM
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thanks guys.i was wondering how different the valve events would be compared to the LS2....
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Old Apr 19, 2012 | 10:55 AM
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will this cam work on a 4.8 truck?
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Old May 24, 2012 | 06:21 AM
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gen IV ls cams are different from the gen III's. you would have to get the gen IV front cover with the cam position sensor, the extension for the wiring harness to reach it, and you would have to relocate your O2's aswell.
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Old Jul 31, 2012 | 06:31 PM
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So basically they are the same camshaft as the 02-04 z06?
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Old May 11, 2019 | 04:26 PM
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So this cam is a fuel management cam with goofy lifters?
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Old May 11, 2019 | 04:49 PM
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Originally Posted by Racer86
So this cam is a fuel management cam with goofy lifters?
No. The LS3 cam uses normal lifters. You are thinking of DOD/AFM cams like in the L99.
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Old May 12, 2019 | 05:24 AM
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The specs are 204/211 117LSA -3

Yes, the camshaft is retarded by 3 degrees.
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Old May 12, 2019 | 08:29 AM
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If i advance the cam 3 degrees will it be a decent cam?
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Old May 12, 2019 | 09:45 AM
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Originally Posted by Racer86
If i advance the cam 3 degrees will it be a decent cam?
If it's going in a 6.2 litre I would certainly not advance it as you will lose some of your top end power and and your red line will be lower.
Install it at factory specs
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Old May 12, 2019 | 10:02 AM
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Originally Posted by ronald.fields
gen IV ls cams are different from the gen III's. you would have to get the gen IV front cover with the cam position sensor, the extension for the wiring harness to reach it, and you would have to relocate your O2's aswell.
I'm not so sure there is a difference between a Gen 3 and Gen 4 camshaft other than the three bolt to the one bolt. The reason for the timing cover with the cam position sensor was because the Gen 4 blocks did not have the provision in the back of the block to install the cam sensor just as they did away with the knock sensors being underneath the valley cover. I'd rather get to those sensors easily if I had to change them and you can modify the Gen3 blocks to move the knock sensors to the side of the engine and plug off the cam sensor location at the back of the block in order to upgrade to the timing chain cover with the cam sensor up front.
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Old May 12, 2019 | 10:45 AM
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Originally Posted by bortous
If it's going in a 6.2 litre I would certainly not advance it as you will lose some of your top end power and and your red line will be lower.
Install it at factory specs
Actually its going into a 08 5.3 thats going in a 3100 lb Nova
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