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Is it supposed to be this dirty? (PIC)

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Old Apr 25, 2004 | 03:36 PM
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Default Is it supposed to be this dirty? (PIC)
I just pulled my intake manifold on my way to doing the LS6 PCV mod and I am amazed how dirty the intake side of my heads are. (You can't really tell from the picture but there is dirt or sand all arround the intake ports on the heads and sitting between the heads & valley cover. Has anyone else had this problem? Is it a sign of worse thigns below the intake? As you can see there is a lot of oil build up on intake ports also. Should I clean that all of (I am assuming yes)?

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Old Apr 25, 2004 | 03:53 PM
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that looks good in comparison to mine
Attached Thumbnails Is it supposed to be this dirty? (PIC)-stockheads-3-.jpg  
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Old Apr 25, 2004 | 04:21 PM
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Yes, its normal. The only sealing points on the intake is around the intake runners. The rest is open under there.
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Old Apr 25, 2004 | 06:09 PM
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yeah it's amazing how much trash gets under there...
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Old Apr 25, 2004 | 06:15 PM
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Mine was pretty nasty too when I pulled my intake. Don't worry about it, that stuff wont get in your engine.
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Old Apr 25, 2004 | 07:30 PM
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i assume everyone cleaned it up real good before you put it back in place?
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Old Apr 25, 2004 | 07:35 PM
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Yea..

Mine was pretty nasty too.. Quite a bit of oil.. I also found a few leaves in there too?

I just pulled the manifold for the second time yesterday, and it was just one big oil slick...
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Old Apr 25, 2004 | 07:41 PM
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hey z28venom im curious whats ur #s like? dyno or times.
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Old Apr 25, 2004 | 07:58 PM
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Originally Posted by 2000Z28M6
hey z28venom im curious whats ur #s like? dyno or times.

I haven't had the car tuned yet. I have to wait a whole week more...
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