Exhaust manifold gaskets

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Aug 2, 2008 | 01:07 AM

Redog

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Joined: Aug 2006

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From: Far Northeast Philadelphia, PA

Exhaust manifold gaskets

I don't need them on a 350, it that correct?

The gasket in there are warped and causing a leak. I was going to pull them out

Aug 2, 2008 | 01:31 AM

88 coupe

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Joined: Oct 2004

Posts: 2,212

From: Southern CA

If you don't use gaskets, they can't leak.

You will need to to have the flanges surfaced by your machinist.

Norm

Aug 2, 2008 | 05:49 AM

Redog

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From: Far Northeast Philadelphia, PA

Just trying to hold on long enough to get headers.

Found a set that should fit the 80's B body

I got to get rid of the stock 307 exhaust manifolds

Aug 2, 2008 | 08:56 AM

BILL DEMMER

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Joined: May 2008

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From: THE GREAT WIDE-OPEN

Quote:

Originally Posted by 88 coupe

If you don't use gaskets, they can't leak.

You will need to to have the flanges surfaced by your machinist.

Norm

and possibly the head surface where they mount.

bill

Aug 2, 2008 | 10:14 AM

joe_padavano

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Posts: 50,799

From: Northern VA

I don't know what manifolds you're running, but be aware that the tubular manifolds used on the later 307s DO require gaskets. Also, these gaskets have different port sizes than all other Olds exhaust gaskets.

Aug 3, 2008 | 06:19 PM

Redog

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From: Far Northeast Philadelphia, PA

No these are the cast iron ones.

I got lucky. They changed them 1/2 way thoght the 85 model year and I got the old ones.

If I remember correctly they are 14/17's