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Aug 31, 2011 | 07:52 PM

tehcarguy

Thread Starter

Burning Brakes

Joined: Aug 2010

Posts: 833

Likes: 1

What is this?

Is it supposed to be there? Put it back on when I reassemble top end?

Aug 31, 2011 | 08:46 PM

ca-wolf

Intermediate

Joined: Jun 2010

Posts: 45

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From: Atascadero CA

Are you refering to the instake manifold gasket or the mound of oilly crap? If gasket, then yes, put a new one back on. If mound of crap you can leave it off.

Aug 31, 2011 | 09:02 PM

tehcarguy

Thread Starter

Burning Brakes

Joined: Aug 2010

Posts: 833

Likes: 1

The gasket isn't even pictured, and the mound of crap was removed in a hot tank. I was refering to the plate covering the coolant passage in the middle of the head.

Aug 31, 2011 | 09:09 PM

bill mcdonald

Le Mans Master

Joined: Oct 1999

Posts: 6,366

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That looks like an EGR block off.
Do you have a new intake manifold (uhh make that gasket) with a new plate in place?

Last edited by bill mcdonald; Aug 31, 2011 at 09:15 PM.

Aug 31, 2011 | 09:10 PM

87 vette 81 big girl

Melting Slicks

Joined: Nov 2008

Posts: 2,765

Likes: 5

That plate was part of the factory intake manifold gaskets.

Pop it off with a small screwdriver & throw that piece of tin in the trash can.

Aug 31, 2011 | 09:38 PM

tehcarguy

Thread Starter

Burning Brakes

Joined: Aug 2010

Posts: 833

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Bill, all the coolant passages on the heads had plates like that.
Brian, it's odd that they allowed only that small hole for coolant to pass through.

Aug 31, 2011 | 10:37 PM

C409

Le Mans Master

Joined: Feb 2005

Posts: 6,479

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From: Clearwater Florida

Quote:

Originally Posted by tehcarguy

Bill, all the coolant passages on the heads had plates like that.
Brian, it's odd that they allowed only that small hole for coolant to pass through.

..... That's not a coolant passage ... its an exhaust port for EGR and , before EFI it was to supply heat to the intake manifold under the carburetor to improve fuel atomization ......

Sep 1, 2011 | 03:41 AM

navy_vette

Burning Brakes

Joined: Nov 2008

Posts: 995

Likes: 1

From: Naples Campania

Quote:

Originally Posted by C409

..... That's not a coolant passage ... its an exhaust port for EGR and , before EFI it was to supply heat to the intake manifold under the carburetor to improve fuel atomization ......

They didn't do much to the 350 SB itself when they went from carb to EFI. As far as I know, it's EGR and is no longer useful.