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-   -   4.3 Vortec Lower intake manifold ? (https://blazerforum.com/forum/engine-transmission-35/4-3-vortec-lower-intake-manifold-96564/)

vetplus40 03-26-2018 10:34 PM

4.3 Vortec Lower intake manifold ?
 
Great forum you have here. I look forward to learning and sharing.
I did both a site and internet search for the answer to this question, but found nothing. As such, I figured that the answer would certainly be found here...:)
Question: I finally had to tear down my 2003 Blazer to replace the frequent lower intake manifold gasket that was leaking. When I removed the intake yesterday, I discovered that one of the mounting holes was actuaslly slotted. At first, I thought that a piece of metal might have chipped off, but upon further examination the slot is smooth and appears to have been machined or cast this way. Can anyone explain why one bolt hole is actually slotted? Thanks.

christine_208 03-27-2018 06:10 PM


Originally Posted by vetplus40 (Post 688256)
Great forum you have here. I look forward to learning and sharing.
I did both a site and internet search for the answer to this question, but found nothing. As such, I figured that the answer would certainly be found here...:)
Question: I finally had to tear down my 2003 Blazer to replace the frequent lower intake manifold gasket that was leaking. When I removed the intake yesterday, I discovered that one of the mounting holes was actuaslly slotted. At first, I thought that a piece of metal might have chipped off, but upon further examination the slot is smooth and appears to have been machined or cast this way. Can anyone explain why one bolt hole is actually slotted? Thanks.

Can you post a picture? What you described doesn't ring a bell with me.


Did you get the upgraded Fel-Pro LIM gaskets?

chevyriders 03-27-2018 06:51 PM

I'm interested to find out if it has a legitimate use also.

vetplus40 03-28-2018 08:19 PM

Yes, I got the upgraded gasket set with the metal intake gaskets.


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