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Canadian Poncho Homepage -> Canadian Poncho -> Canadian Pontiac/Acadian/Beaumont Cars/Parts Wanted -> 427 Single exhaust manifold needed
Post Info TOPIC: 427 Single exhaust manifold needed
ABC123


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427 Single exhaust manifold needed
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After a very stressful work day yesterday, you want to tear something apart today biggrin

I went after the exhaust leak in the white car.

This is what I found.

001a.jpg

002a.jpg

The other motor I have has the exhast end on a different angle so I believe this was for a single exhaust.

009a.jpg

007a.jpg

Does anyone have an extra left hand maniford like this one ?

427 335 horse engine.



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Howmac


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I have one for you that need the one ear repaired ( common problem )

The LH is different angle as it has to clear the steering box . This one has been blasted and does have pitting . Correct cast code , but is a late 67 date for the 68 model year .   

Are you in a rush ? 



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1960 GMC Short Fleet side 455 T400

1969 Chevelle Wagon 3 row #'s  LM1 M20 ( project) 

 

 
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ABC123


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No rush Howard, if you say that they are all the same for B-body 427s

I thought the other 427, 390 horse manifold was different.

I can always borrow that one for now.

I will have to go back out and look.

I will post some pictures later.



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65 SD L79


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1968 1969 1970 BBC 396 427 454 EXHAUST MANIFOLD IMPALA 3914613 CHEVY 68 69 70 | eBay



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4SPEED427


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I'm not at my books at the moment so I'm going by memory but I believe the left big block manifold for B body interchanges 65-67, then 68-70 is a different one.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
4SPEED427


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Oh and I should add, there is no unique manifold for the single exhaust big block B bodies.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
ABC123


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I see that they are the same.

I don't want to touch this one biggrin

012a.jpg

I have a local welder with experience fixing racing differentials who wants to try to fix it.

He might as well try, what do I have to lose ?

A member, within driving distance to me, said he will look tomorrow 



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4SPEED427


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It's worth a try but from what I know, it takes a guy with experience and the right equipment to have any hope of success. Common issue on the big block manifolds.



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1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
seventy2plus2


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I have one in the garage, I'll be back home later in the week.
If I recall, 68-70 are the same for the B-body big blocks, and that manifold is only used on B-body. Single & dual exhaust use the same.

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ABC123


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Welding came back pretty good.

002a.jpg

However, there is a lot of junk on this car between me and that manifold.

I ended up using the one off the other engine as I don't want to do this again if the weld fails.

This one will get blasted and coated and used on the 2+2

if I don't come up with a better one.

Thanks for the help and advice !



-- Edited by ABC123 on Wednesday 12th of June 2024 02:51:15 PM

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LT1Caddy


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What is the part # you need?

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ABC123


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LT1Caddy wrote:


What is the part # you need?

 3914613



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unruhjonny


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brazing is the way to go;
because these are not a stress point like a lower stud boss, that should hold just fine.

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LT1Caddy


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www.kijiji.ca/b-auto-parts-tires/city-of-toronto/c31l1700273

I THINK these are the same, different casting number though.....

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ABC123


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https://www.kijiji.ca/v-engines-and-engine-parts/oakville-halton-region/1967-chevrolet-bb-left-exhaust-manifold/1688249133

Is the only one I see in the GTA.

1967s are different.

But thanks !



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seventy2plus2


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LT1Caddy wrote:

www.kijiji.ca/b-auto-parts-tires/city-of-toronto/c31l1700273

I THINK these are the same, different casting number though.....

 Hmmm, that link brings up 20180 items.



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seventy2plus2


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Will take a look in my garage tomorrow and see if I can get a good one for you. What date code is on the one you removed from the Parisienne?

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ABC123


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seventy2plus2 wrote:

Will take a look in my garage tomorrow and see if I can get a good one for you. What date code is on the one you removed from the Parisienne?

 005a.jpg

January 22nd, 1969 ?



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seventy2plus2


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I've been a bit under the weather, but will see what I have over the next few days.

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70 2+2 convertible
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ABC123


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Please take care.

Stupid Ontario germs biggrin



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seventy2plus2


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ok, I did my acrobatics to get some photo's.  I've got 4 of them.

3914613 Manifolds 1.jpg

All are 3914613 castings, date codes are L-R:  

C 3 9  (March 3 1969)

E 15 9  (May 15 1969)

J 18 9  (Oct 18 1969)

L 4 7 (Dec 4 1967)   Has had front ear repaired.

As C 3 9 was the closest to your original A22 9, here's additional photo's of that one:

3914613 Manifolds 2.jpg

3914613 Manifolds 3.jpg

3914613 Manifolds 4.jpg

Shipping would be a killer, and it's likely a good idea to remove the studs prior to shipping as they have a habit of getting broken no matter how well it's packed.



-- Edited by seventy2plus2 on Sunday 23rd of June 2024 10:59:32 PM

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ABC123


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Larry is heading out West on July 2nd.

He usually stops in your area.

Let me see about this trip's plan.

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ABC123


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Larry is definitely coming to Calgary in Mid-July.

I will set this up through private messaging.

Thank you in advance.

I just found another crack in this manifold no

This is very much appreciated.

Randy



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