Re: {Chrysler 300} Intake manifold insulation

["'Donald Verity' via Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>]

I've used tin foil and fiberglass insulation in the past, and they held up fine. If they are collecting oil, dirt and water, maybe the leaks should be fixed. They are being reproduced now, although they repeat much of the same miss-information. https://www.performancecargraphics.com/Manifold_Insulation.htm The intake should actually run cooler without it. There is a reason why there are air gap manifolds for lesser cars. The small block Mopar's intake sits right on top of the lifter valley. I think they have a plate fastened to the manifold to keep direct oil splash off. 

Don

That is a much thicker gage of foil they used and yes all they do is collect grime, oil and dirt and water. Would be pretty hard to reproduce without the correct foil and proper dense mineral wool fiber deadening, I'm thinking and to what benefit? I've seen those actually rot through a bathtub intake gasket which is bad news, so I always discard those anytime I crack an engine open or pull an intake. Just my two cents...

Kevin

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From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> on behalf of Finsruskw@xxxxxxxxxxxxxxx <finsruskw@xxxxxxxxxxxxxxx>
Sent: Monday, June 9, 2025 5:14:04 PM
To: Donald Verity <chryslerdon@xxxxxxx>
Cc: Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>; ALLAN POZDOL <apozdol@xxxxxxxxxxx>
Subject: Re: {Chrysler 300} Intake manifold insulation

 

Don nailed it!

Make your own,

 Got tin foil? 

Know anyone rehabbing or building a house?

Look in their dumpster, probably find some scraps.

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From: "Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
To: "Chrysler 300 Club International" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>, "ALLAN POZDOL" <apozdol@xxxxxxxxxxx>
Sent: Monday, June 9, 2025 5:58:40 PM
Subject: Re: {Chrysler 300} Intake manifold insulation

It's not insulation, it's sound deadening. 

Don

What are opinions on using the insulation between the intake manifold and the valley pan? 

Most seem to end up missing, like mine did with only a remnant remaining.

 

Allan

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