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Hole in Valve cover?

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Old May 21, 2013 | 07:17 PM
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1999HuggerZ28's Avatar
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Default Hole in Valve cover?

Any idea what this hole in the far back driver side valve cover is for? I purchased this car from a dealer a few weeks ago and I'm trying to figure out what MODS it already has done... The heads are 317s does that mean it has different valve covers from stock also?
Attached Thumbnails Hole in Valve cover?-image.jpg  
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Old May 21, 2013 | 07:20 PM
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its for the stock PCV system that has probably been removed.. cap it
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Old May 23, 2013 | 07:09 PM
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If its got 317s, it may have been boosted at one time. They are 6.0 heads and usually lower the compression.
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Old May 23, 2013 | 07:11 PM
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You'll need a grommet and the plug (12568011)
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Old May 24, 2013 | 06:25 AM
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Ity looks like the valve cover/oil filler neck on the passenger side. Like the flipped it upside down for some reason.

Chad
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Old May 24, 2013 | 07:48 AM
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Thanks guys... I'll try and get a picture of the whole valve cover as it is a different configuration then my other stock 99 Z28 covers.
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