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Old 06-11-2023, 03:13 PM   #1
11REDSS
 
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what goes here

I changed the valley pan on my l99 to a ls3 and I can not remember what if anything goes in this threaded hole, its on the back passenger side on the china rail.
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Old 06-15-2023, 05:50 PM   #2
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Not sure how helpful but I found this pic I took after removing my intake manifold an eternity ago, guessing it's just an unused hole, at least on the L99.
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Old 06-15-2023, 06:05 PM   #3
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Sorry, I thought it was the vent holes but I believe they're actually on the heads.
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Old 06-15-2023, 06:43 PM   #4
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I just spent some time trying to find a picture of the engine block from the back side, which I guess is not that common, everyone likes the front pictures, but found this image on this thread (https://www.camaro5.com/forums/showthread.php?t=448785) doesn't look like the hole leads anywhere at least, looks to me like an engine appendix, a leftover from design phase that probably did something at some point. But I'm a geologist by trade not a mechanic.
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Old 06-15-2023, 08:57 PM   #5
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Just a guess, but maybe it’s a mount for the wire loom
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Old 06-17-2023, 06:11 AM   #6
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Ok thanks guys I am just going to put a bolt in there to plug it just for piece of mind.
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Old 07-17-2023, 09:16 PM   #7
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look at the casting . it goes nowhere. could be an extra ground point
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Old 07-18-2023, 07:55 PM   #8
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Quote:
Originally Posted by oldman14ss View Post
look at the casting . it goes nowhere. could be an extra ground point
And I can't really tell, but it doesn't even look like it is threaded. Just looks like a possible locating hole for something?
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