Matting headers to midpipe ?
Thread Starter
Melting Slicks
Joined: Nov 2008
Posts: 2,185
Likes: 641
From: Garland TX
Matting headers to midpipe ?
In the process of installing BBK shorty headers on my 03 Z06. Got the headers bolted down and went underneath to mate the midpipe.
Unobservant me didn't notice the factory manifolds are a ball type:
And the shortys are flat:
So here's how they line up under the car:
Any issues with these sealing once they are tightened down?
Unobservant me didn't notice the factory manifolds are a ball type:
And the shortys are flat:
So here's how they line up under the car:
Any issues with these sealing once they are tightened down?
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if the gasket will fit inside the recessed lip on the flange of your new headers I think you will be fine
nevermind I looked at the pics wrong... there is no lip on the midpipe for a gasket to fit onto, that lip/gasket is on the stock manifold... did they supply new gaskets?... looks like you might be able to jam an oem type gasket between the 2 pipes or you could try a new midpipe as well or have a different flange welded onto the stock midpipe... if you needed another midpipe you would think that would be mentioned by the manufacturer
nevermind I looked at the pics wrong... there is no lip on the midpipe for a gasket to fit onto, that lip/gasket is on the stock manifold... did they supply new gaskets?... looks like you might be able to jam an oem type gasket between the 2 pipes or you could try a new midpipe as well or have a different flange welded onto the stock midpipe... if you needed another midpipe you would think that would be mentioned by the manufacturer
Last edited by StingrayRebel; Jul 19, 2015 at 08:13 PM.
Thread Starter
Melting Slicks
Joined: Nov 2008
Posts: 2,185
Likes: 641
From: Garland TX
if the gasket will fit inside the recessed lip on the flange of your new headers I think you will be fine
nevermind I looked at the pics wrong... there is no lip on the midpipe for a gasket to fit onto, that lip/gasket is on the stock manifold... did they supply new gaskets?... looks like you might be able to jam an oem type gasket between the 2 pipes or you could try a new midpipe as well or have a different flange welded onto the stock midpipe... if you needed another midpipe you would think that would be mentioned by the manufacturer
nevermind I looked at the pics wrong... there is no lip on the midpipe for a gasket to fit onto, that lip/gasket is on the stock manifold... did they supply new gaskets?... looks like you might be able to jam an oem type gasket between the 2 pipes or you could try a new midpipe as well or have a different flange welded onto the stock midpipe... if you needed another midpipe you would think that would be mentioned by the manufacturer
anyone know if the base C5 has a donut gasket from factory cause apparently the Z06's do not.
Acct Suspended APR 2026 by request
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2020 Corvette of the Year Finalist (performance mods)
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look at your first pic, there is a gasket on that manifold it is just old and probably stuck on there... if that is from your car try reusing those, use a flathead screwdriver to pry them off
Thread Starter
Melting Slicks
Joined: Nov 2008
Posts: 2,185
Likes: 641
From: Garland TX
Just realized you are in the same city as me. Do you head up to the Friday meets in Plano or meet up with NDCC on Sunday nights?
Last edited by Not4spd; Jul 19, 2015 at 09:02 PM.
Thread Starter
Melting Slicks
Joined: Nov 2008
Posts: 2,185
Likes: 641
From: Garland TX
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
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Thread Starter
Melting Slicks
Joined: Nov 2008
Posts: 2,185
Likes: 641
From: Garland TX
Lowered the midpipe and got the gaskets in. Just got to put the belt back on, reconnect battery, pray for no leaks, and it's back on the road again.
Last edited by Not4spd; Jul 19, 2015 at 09:35 PM.