[Z06] Need Advice on Header Gaskets

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Aug 28, 2007 | 06:45 PM

ritaylorz06

Thread Starter

Instructor

Joined: Jul 2005

Posts: 232

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From: New Market Maryland

Need Advice on Header Gaskets

I'm going to be installing long tube headers on my 2003 Z06. I wanted to know the best type of header gaskets and bolts to use. Can the stock gasket be re-used?

Aug 28, 2007 | 07:59 PM

Last C5

Safety Car

Joined: Jul 2004

Posts: 3,904

Likes: 29

From: Vancouver Washington

Quote:

Originally Posted by ritaylorz06

I'm going to be installing long tube headers on my 2003 Z06. I wanted to know the best type of header gaskets and bolts to use. Can the stock gasket be re-used?

Reusing any gasket is risky, and with all the work it takes to put on LTs I'd go get a set of new stock gaskets.

Aug 28, 2007 | 08:19 PM

zeevette

Race Director

Joined: Sep 2005

Posts: 11,060

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From: Pasco WA

GM changed the LS1 type gaskets to MLS, and that's what I'm using.

Aug 28, 2007 | 09:31 PM

heavymetals

Drifting

Joined: Jul 2005

Posts: 1,484

Likes: 27

From: Torrance Calif

PERCY'S gaskets and ARP hardware.

Aug 28, 2007 | 09:31 PM

thetorch

Burning Brakes

Joined: Jul 2000

Posts: 1,134

Likes: 1

From: Arlington Texas

I used '98 LS1 exhaust manifold gaskets with my Dynatech LT's. They are MLS and have worked great to date. They have been on there almost 3 years without a lick of problems.

Aug 29, 2007 | 09:21 AM

silver01z06

Instructor

Joined: Oct 2005

Posts: 141

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From: arlington tx

you can probably reuse them but to be safest just get new ones. they are cheap enough to not worry about it

Aug 29, 2007 | 09:31 AM

ritaylorz06

Thread Starter

Instructor

Joined: Jul 2005

Posts: 232

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From: New Market Maryland

Thanks for the input. It sounds like a new set of stock gaskets are a good way to go.

Aug 29, 2007 | 09:32 AM

bluewire

Drifting

Joined: Mar 2005

Posts: 1,542

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From: Houston TX

The best gaskets you can use are the GM F-body gaskets. You will find that most people are using them. The F-body gaskets have round holes Vs. rectangular on the Y-body gaskets.

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Aug 29, 2007 | 08:51 PM

thetorch

Burning Brakes

Joined: Jul 2000

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From: Arlington Texas

Quote:

Originally Posted by silver01z06

you can probably reuse them but to be safest just get new ones. they are cheap enough to not worry about it

Nope, can't do that. The Y-body stock exhaust gaskets have oval ports and will not seal correctly. Round exhaust ports on the gasket side are required for headers. The 98 F-body gaskets have round ports.

Aug 29, 2007 | 10:10 PM

#10

ILM-Express

MFIC

Joined: Aug 2005

Posts: 1,997

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From: Charlotte, North Carolina

Go to your local NAPA and buy part number MS92467 they are made by Victor Reinz, the same ones OEM uses.

These are round holes, not ovals like someone posted above

Quote:

Originally Posted by ritaylorz06

I'm going to be installing long tube headers on my 2003 Z06. I wanted to know the best type of header gaskets and bolts to use. Can the stock gasket be re-used?

Last edited by ILM-Express; Aug 29, 2007 at 10:16 PM.

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