exhaust block off for exhaust manifold dual exhaust

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Jul 20, 2016 | 11:37 AM

11971four4two

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MOTORHEAD

Joined: Feb 2011

Posts: 7,958

From: minnesota USA

exhaust block off for exhaust manifold dual exhaust

Factory piece as used on w31 rallye 350 and 72 442 cutlass with duals.
SOLD AS IS

$30 shipped to lower 48

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exhaust cap 001.JPG (698.4 KB, 104 views)

exhaust cap 002.JPG (706.6 KB, 82 views)

Jul 20, 2016 | 11:42 AM

Fun71

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Joined: Feb 2013

Posts: 15,409

From: Phoenix, AZ

That was used on all 350 cars with N10 Dual Exhaust option.

Last edited by Fun71; Jul 20, 2016 at 11:45 AM.

Jul 20, 2016 | 11:46 AM

11971four4two

Thread Starter

MOTORHEAD

Joined: Feb 2011

Posts: 7,958

From: minnesota USA

Would also work on 330 engines with dual exhaust

Jul 20, 2016 | 12:55 PM

Fun71

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Posts: 15,409

From: Phoenix, AZ

I was trying to figure how to say dual exhaust cars excluding big blocks with W/Z manifolds and didn't do a very good job of it.

Last edited by Fun71; Jul 20, 2016 at 12:59 PM.

Jul 20, 2016 | 01:00 PM

11971four4two

Thread Starter

MOTORHEAD

Joined: Feb 2011

Posts: 7,958

From: minnesota USA

I would think you could make this work on a 400 425 455 that had been single exhaust

Modification may be needed????
My druthers would be

W and Z for dually on a large

Thanks 4 playing

Aug 1, 2016 | 06:53 PM

11971four4two

Thread Starter

MOTORHEAD

Joined: Feb 2011

Posts: 7,958

From: minnesota USA

hack

twenty five dollars
shipped to lower 48

Aug 5, 2016 | 08:38 AM

Alex72cutty

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Joined: Jan 2012

Posts: 585

From: Dallas, Tx

Are these installed on the exhaust port for the intake?? I have a 350

Aug 5, 2016 | 09:39 AM

11971four4two

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MOTORHEAD

Joined: Feb 2011

Posts: 7,958

From: minnesota USA

This part is installed on pass side exhaust manifold to cap where the cross over pipe would attach on a single exhaust car.

Oct 25, 2016 | 02:48 PM

Alex72cutty

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Joined: Jan 2012

Posts: 585

From: Dallas, Tx

Quote:

Originally Posted by 11971four4two

This part is installed on pass side exhaust manifold to cap where the cross over pipe would attach on a single exhaust car.

Even though I have an edlebrock intake? I also have hooker headers as well.

Oct 25, 2016 | 04:04 PM

#10

m371961

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Joined: Mar 2012

Posts: 2,163

From: Sistersville, WV

Not sure, but don't the Big block have wider distance between studs?
Alex72, if you have headers, it ain't for you. This is not a blockoff for the intake passageway.

Oct 25, 2016 | 07:21 PM

#11

servexcell

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Joined: Jul 2009

Posts: 982

sending PM

Oct 25, 2016 | 07:27 PM

#12

servexcell

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Posts: 982

I'll take it . Sending you a PM

Bruce

Oct 25, 2016 | 08:44 PM

#13

z11375ss

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Posts: 3,238

Ding Ding Ding!

Oct 27, 2016 | 03:52 AM

#14

Alex72cutty

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Joined: Jan 2012

Posts: 585

From: Dallas, Tx

Yea, that what I had figured. Thanks!!

Jun 3, 2019 | 11:36 AM

#15

D. Yaros

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Joined: Nov 2006

Posts: 1,918

From: SE Wisconsin

Have to wonder, ask, why could not one modify the crossover pipe to work? Cut it and cap it on the driver side and reroute it on the passenger side to the underside of the chassis?