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Gen III cam work in Gen IV?

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Old Jun 24, 2009 | 01:21 PM
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Default Gen III cam work in Gen IV?
Will a gen III cam cam work in a Gen IV engine? I am removing the VVT and changing to the LS2 front cover and cam timing gear?
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Old Jun 26, 2009 | 09:03 PM
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im pretty sure they do if you do what you just said.. but it be a lot easier to just use a cam for it to begin with no??
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Old Jun 27, 2009 | 12:37 AM
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Yes you can use a Gen3 cam in a Gen4. You just need to buy the timing gear with 3 bolt holes, 3 cam bolts, and you should change the brown chain tensioner to the black chain damper.

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Old Jun 27, 2009 | 06:31 AM
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^^^Also the chain sprocket pictured above is for a 4x cam sensor which means you would have 58x reluctor wheel...with a 24x reluctor wheel you should get a 1x cam sprocket....
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Old Jun 27, 2009 | 06:50 AM
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3 bolt 1x cam gear for 24x
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Old Jun 27, 2009 | 07:24 AM
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I kept the brown chain tensioner on my 418. Either one will work. If your engine has the brown one, keep it.
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Old Apr 30, 2010 | 06:28 PM
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Why does everyone say to change the timing chain tensioner? I need to know before I button up the front of my car.
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Old Apr 30, 2010 | 07:07 PM
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The brown/yellow tensioners often break
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Old Apr 30, 2010 | 07:26 PM
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Originally Posted by HSV-GTS-300
The brown/yellow tensioners often break
But I have been reading that the black one has a different bolt patter and will not bolt up to the '07+ blocks...
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Old Apr 30, 2010 | 07:59 PM
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The black damper definately fits in the Gen 4 blocks used in 2008 & 2009 Pontiac G8-GT's.
The block itself in those has the same block casting number as an LS2.

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Old Apr 30, 2010 | 08:02 PM
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^^^Thanks for your response. I will go ahead and order the black one.
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Old Apr 30, 2010 | 09:47 PM
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I've read a lot of mixed info on which tensioner is better. At least the newer one adds some tension
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