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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 05-25-2011, 10:56 PM   #1
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Exclamation LS1 oil pan gasket question (rivets and sealant??)

I swapped all the LS1 swap parts over to my 5.3 block. The oil pan is my issue here...Both engines were clean and dry and when I pulled the pans for the swap the oil pan gaskets on them were riveted on. The LS1 pan looked ready to go right back on with original gasket, I wiped the engine side down and bolted it back together. Now after first time fire up I have a small oil leak neat the filter area. Coming from right near the rivet on the drivers side. Dropped the pan tonight and that rivet looked a little questionable (maybe loose and most likely the issue or area of concern atleast) so I punched the rivets out and ditched the stock gasket.

I bought the Fel-Pro gasket but it didnt come with rivets but the holes are there for them on the new gasket, but I'm sketchy about using rivets again.

Do I absolutely need to run them or can I just go about installing dry or should I silicone/RTV the rivet holes and should I use any RTV/silicone anywhere on the brand new gasket? I have thoroughly clean all surfaces and it is all dry and ready to go for tomorrows install.

Thanks in advance.
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Old 05-25-2011, 10:57 PM   #2
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I used no Rivets Joe , and I run a GM Gasket . It's better than the felpro IMHO , and cost me less.
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Old 05-25-2011, 10:59 PM   #3
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nope you dont need the rivets or the rtv for that matter. theres just four tiny spots that need not a whole lot of rtv on the pan gasket to block.
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Old 05-25-2011, 11:02 PM   #4
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The Fel-Pro gasket was $48, maybe I'll call GM tomorrow and see what cost is for us at work on a GM part before I go further with this Fel-Pro. Seems the only 2 options were GM part or the Fel-Pro from the searching I did though.

What are the "tiny spots" needing small amounts of RTV? I have read that the corners need it, others say all dry is best, some say do the whole damn gasket lightly just for good measure...confusing to say the least.
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Old 05-25-2011, 11:22 PM   #5
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Just drill the rivets and don't worry about them. The pan gasket shouldn't need any RTV between the pan and the block. We put a small amount in the corners where the front and rear covers meet the pan gasket. Other than that, install it dry. We sell the LS1 GM pan gaskets for $35.99. Let us know if you need one!

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Old 05-25-2011, 11:22 PM
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