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03-31-2008, 07:16 PM | #1 |
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Join Date: Jan 2006
Location: Warrington, PA
Posts: 403
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Exhaust Crossover Question
My intake gasket is supplied with these metal inserts. I assume these are for restricting the exhaust crossover port in the head. Do you guys leave this port open, closed or restricted?
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69 C10 LWB GM 350 crate motor, 3.73 rearend |
03-31-2008, 07:39 PM | #2 |
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Location: Overland Park, Ks.
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Re: Exhaust Crossover Question
Leave them out. They are for the heavy duty trucks.
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03-31-2008, 07:55 PM | #3 |
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Re: Exhaust Crossover Question
will do.......thanks!
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69 C10 LWB GM 350 crate motor, 3.73 rearend |
03-31-2008, 10:16 PM | #4 |
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Location: Estherville, Iowa
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Re: Exhaust Crossover Question
Put them in !!! You need may need some heat up there but not that much, some block them off altogether for cooler intake, I think the restrictor is a happy medium betweeen blocked off and wide open. What intake are you running ? JMHO.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 03-31-2008 at 10:17 PM. |
04-01-2008, 05:23 AM | #5 |
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Location: Warrington, PA
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Re: Exhaust Crossover Question
i am running a performer intake.
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69 C10 LWB GM 350 crate motor, 3.73 rearend |
04-01-2008, 04:45 PM | #6 |
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Join Date: Mar 2005
Location: weatherford,texas
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Re: Exhaust Crossover Question
i restricted mine. i am using an eldelbrock eps manifold.
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