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Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Small Cam LS3 build in a 4th gen

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Old Apr 10, 2020 | 06:11 PM
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With 121 degrees LSA, it BETTER idle smooth with only 211 intake duration. LOL
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Old Apr 10, 2020 | 09:21 PM
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Does it idle completely stock ?
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Old Apr 10, 2020 | 09:34 PM
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Originally Posted by Blk_Ws6
Does it idle completely stock ?
Yes it does.
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Old Apr 10, 2020 | 10:24 PM
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so its' idles more differently from the ls9 ? that ls9 idles like a big cam.
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Old Apr 10, 2020 | 10:26 PM
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I was told It (ls7) pulls like stock until 5000rpm . I like that .
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Old Apr 11, 2020 | 12:45 AM
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The LS9 and LS7 cams are nearly identical with about 1-1/2 degrees difference in the LSA.
The exhaust note changes a little due to the longer exhaust duration,but neither lopes at all.
You will lose some low end power due to late intake valve closing. Any additional power comes on very late.
How big a motor is this going in? Anything under a 6.0 is not a good candidate for this cam.
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Old Apr 11, 2020 | 10:23 AM
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Ls3 , trying add alittle more power without a lope .
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Old Apr 11, 2020 | 10:28 AM
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From: Little Austin
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Originally Posted by Blk_Ws6
Ls3 , trying add alittle more power without a lope .
I run the Summit "ghost" cam and love it. It idles very smoothly and pulls hard to 7k rpm. I have an idle video posted on my IG.

Andrew
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Old Apr 11, 2020 | 01:16 PM
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Post a clip.
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Old Apr 11, 2020 | 02:04 PM
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From: Little Austin
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Originally Posted by Blk_Ws6
Post a clip.
View this post on Instagram
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Old Apr 11, 2020 | 03:16 PM
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Nice setup , an yea I like that one can be hide with a good exhaust .
how much power did that cam make ?
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Old Apr 11, 2020 | 07:19 PM
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Originally Posted by Blk_Ws6
Nice setup , an yea I like that one can be hide with a good exhaust .
how much power did that cam make ?
It's a stock 5.3 L with 799 heads and that intake and the Ghost cam. I've never had it on the Dyno, but judging by fuel flow it's around 400hp at the crank.

Andrew
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