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Nov 23, 2025 | 04:20 PM

copper_metallic_Z07

Thread Starter

1st Gear

Joined: Nov 2025

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Gasket

What the heck is this gasket called? It's on top of throttle body. This one looks way to big.

Nov 23, 2025 | 06:04 PM

RustyDuster

Racer

Joined: Mar 2025

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Is this underneath the plate that says "tuned port injection" that's on top of the throttle body. That looks like some kind of homemade deal or something. Replacements are easy to find if so.

Amazon

Nov 23, 2025 | 06:13 PM

ex-x-fire

Melting Slicks

Joined: Dec 2009

Posts: 2,227

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Idle air control housing gasket.

Nov 24, 2025 | 08:45 AM

AGENT 86

Team Owner

Joined: Jan 2003

Posts: 20,290

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From: Summerland B.C. Canada

Upper Cover gasket.

Nov 24, 2025 | 09:21 AM

radar502

Safety Car

Joined: Dec 2009

Posts: 4,360

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From: Birmingham Al

That one looks kinda funny but if been on for years they all look funny like don't belong on the throttle body, I removed one a while back looked all wrinkled up just like that one ..

Nov 24, 2025 | 10:37 AM

1bdvet

Team Owner

Joined: May 2000

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From: Plantation Florida USAF(Retired) 1966-1990

U.S. Air Force

St. Jude Donor '05 thru '26

NCM Sinkhole Donor

What year Corvette?

Nov 25, 2025 | 01:04 AM

RustyDuster

Racer

Joined: Mar 2025

Posts: 485

Likes: 230

Quote:

Originally Posted by radar502

That one looks kinda funny but if been on for years they all look funny like don't belong on the throttle body, I removed one a while back looked all wrinkled up just like that one ..

What about that material though? Looks thin and vinyl like, almost like this was some kind of improvisation cut from material somebody had lying around.

Nov 25, 2025 | 06:26 AM

'78CorvetteS.A.

Drifting

Joined: Nov 2018

Posts: 1,738

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From: USA

My guess is that gasket started out the correct size, but after being exposed to petroleum products it has swollen up. Some rubber/plastic materials do funny things when exposed, I once threw some brake bleeder rubber caps in a container of odorless mineral spirits to clean them off quick....5 minutes of soaking and they looked like mushrooms the size of a quarter! Lesson learned👍