Intake Manifold Cover Removal - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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  #1  
Old 09-26-2009, 09:18 PM
slosteve slosteve is offline
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Intake Manifold Cover Removal

I'm doing a transplant of an I6 and the cover on the intake manifold is close to some sheet metal on my project car. How do you remove this cover and what is it's function (as in - is it needed)?
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  #2  
Old 09-26-2009, 09:36 PM
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#1 or #2?



1 is the intake manifold and not a cover and 2 is a resonator to quiet down the intake and can be removed
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Old 09-26-2009, 10:10 PM
slosteve slosteve is offline
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I'm talking about #1 and to me it appears that there is a cover that separates down the center (lengthwise). But before I start getting physical with it I thought that I would see if anyone has removed one.
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Old 09-26-2009, 11:17 PM
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It comes off, but the halves are glued together and don't come apart. It's not a cover, it's the manifold itself.

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Old 09-27-2009, 07:44 PM
efi-diy efi-diy is offline
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Quote:
Originally Posted by slosteve View Post
I'm doing a transplant of an I6 and the cover on the intake manifold is close to some sheet metal on my project car. How do you remove this cover and what is it's function (as in - is it needed)?

If you remove the intake manifold there is a sound deadener that can be removed from the intake manifold. Once its off it'll gain you about 7/16" of room. Its sole purpose is to quiet the intake so it can come off.

The air intake box can be removed also - but the intake is noisy so be aware.
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Old 09-27-2009, 11:29 PM
slosteve slosteve is offline
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Thank you!
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  #7  
Old 09-28-2009, 02:05 AM
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Quote:
Originally Posted by efi-diy View Post
If you remove the intake manifold there is a sound deadener that can be removed from the intake manifold. Once its off it'll gain you about 7/16" of room. Its sole purpose is to quiet the intake so it can come off.

The air intake box can be removed also - but the intake is noisy so be aware.

So , will it gain any Hp ?
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