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Old 31 Aug 2008, 12:01 pm
Join Date: Feb 2008
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Default B series Intake Manifold? Acura Integra?

I have a 91 Acura Integra motor (B18a1) in my 94 integra. Someone has a B18b1 Ported Intake Manifold from a 94 and up integra motor. If I get the intake manifold from a b1 will it fit my a1? I know there are alot of things you can do with b series, such as any b series head will fit on any b block. I'm just wondering if the intake manifolds have the same compatability?
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Old 31 Aug 2008, 12:31 pm
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b18a1 is usually from america.. the b18b is usually from japan.. they both are ls motors non vtec.. so it should fit perfectly..
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Old 31 Aug 2008, 12:46 pm
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Join Date: Sep 2007
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the manifold will bolt and plug right on!you should have a B18b manifold on your car right now, that is what comes in a 94'. b18a are different and have different injectors plugs. unless u have a complete b18a and your wiring harness was altered to fit. but the smartest move wouldve of been to just swap mani's at the time of your b18a swap.
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Old 31 Aug 2008, 01:01 pm
Join Date: Jul 2008
Posts: 63

it will fit but the pcv valve port and hose is routed differently than the b18a1 so you'll need the b18b1 valve cover. plus some of the heater hoses that feeds into the throttle body, idle sensor, and controls might need to be re-arrange or replaced with longer ones.
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