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06-23-2013, 08:43 AM
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#1 |
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Registered User
Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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250 L6 exhaust manifold question
Do all Inline 6 exhaust manifolds have an open top that bolts to the intake and Does anyone sell a cover plate to block this off? Currently running headers but am looking to switch back to stock exhaust with my offenhauser intake.
Thanks! Posted via Mobile Device |
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06-23-2013, 11:06 AM
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#2 |
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Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
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Re: 250 L6 exhaust manifold question
The big trucks have a gasket that covers the hole opening. You will probably have to make a plate to cover it.
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06-23-2013, 11:20 AM
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#3 |
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Registered User
Join Date: Jun 2013
Location: Hot Springs, Arkansas
Posts: 17
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Re: 250 L6 exhaust manifold question
Fel-Pro gasket set # MS 9786 includes a block-off gasket. I paid 8 bucks and change for the set at Advance Auto last week.
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06-23-2013, 03:43 PM
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#4 | |
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Registered User
Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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Re: 250 L6 exhaust manifold question
Quote:
Posted via Mobile Device Last edited by jcramsey; 06-23-2013 at 04:01 PM. |
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06-23-2013, 08:34 PM
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#5 |
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Registered User
Join Date: Jun 2013
Location: Hot Springs, Arkansas
Posts: 17
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Re: 250 L6 exhaust manifold question
It's the metallic, perforated-looking material that you find in pretty much all factory-style exhaust gaskets, but one side is solid. It's not what you'd call a plate, though. We'll probably need pictures of the Offy.
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06-24-2013, 10:52 AM
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#6 |
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Registered User
 
Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
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Re: 250 L6 exhaust manifold question
Your offenhouser intake is made to bolt onto the stock exhaust system. There are no purchasable block off plates and if you don't bolt the intake to the exhaust you would have to hook up a water heating system. Offenhouser come from the factory from triple one barrels to a single four barrel, all are made to bolt to the stock exhaust or be used with haeders.
__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw |
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06-24-2013, 11:13 AM
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#7 | |
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Registered User
Join Date: Jun 2011
Location: Marion, NC
Posts: 851
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Re: 250 L6 exhaust manifold question
Quote:
 looks like I'll be headin back to the junkyard this weekend.
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