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LX V8 Exhaust Manifolds - Need Help!

Started by _sstorana_ , Nov 13 2012 02:15 PM

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9 replies to this topic

#1 _sstorana_

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Posted 13 November 2012 - 02:15 PM

Hi Guys,

trying to work out if I have the correct Exhaust Manifolds for my LX SS Hatchback.

Now the problem that I have is this... In the Parts Books, it states that the nubers are;
Exhaust Manifold - LH: 9930044, and
Exhaust Manifold - RH: 7436026 (Pre ADR27a), and
9934332 (ADR27a)

Now, What I have here, for the LHS is: 9930043

Posted Image

The thing is that I cannot find this part number in ANY Parts Catalogue from HQ through to VL.

Is this the correct one for the LX V8? Was it a misprint when they manufacturered them?

Now for the RHS. I have two different manifolds...
Posted Image

One has no part number cast into it. All it has is the word "Holden" on one side and a casting date of "27G7" on the inner side.
Posted Image

The other RHS Manifold that I have has the part number; 9941751 cast into it.. Again, I cannot find any reference to this number in any catalogues.
Posted Image

All I want to know is do I have an original one out of these two. I am leaning towards the first RHS one as it was on the car when I brought it.

Any help would be appreciated!!

cheers
Mick

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#2 hanra

Oh My, Don't you post alot

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Name:Brad
Location:Farrrrrr North Qld
Car:1975 LH SL/R 5000, 1967 Morris Cooper S, E36 BMW, Toyota Corolla, Isuzu DMax
Joined: 24-March 11

Posted 13 November 2012 - 03:02 PM

The info that obtained Mick is:

Drivers side 7437802 and passengers side 7424983.

I went through all this here:

http://www.gmh-toran...nra#entry656747

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#3 _sstorana_

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Posted 13 November 2012 - 03:12 PM

The info that obtained Mick is:

Drivers side 7437802 and passengers side 7424983.

I went through all this here:

http://www.gmh-toran...nra#entry656747

Hi Brad

I assume that is for LH and not LX (post ADR27a)

cheers
Mick

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#4 dattoman

Do I feel lucky? Well, do ya, punk?

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Name:Neil
Location:Perth Western Australia
Car:LX SS , 76 Cadillac , 3 x dattos
Joined: 04-February 07

Posted 13 November 2012 - 09:25 PM

As you know casting numbers and part #'s aren't the same thing

But someone will confirm I'm sure

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#5 a9x868

maurice mead of hatchbacks

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Name:facebook dave
Location:perth miles n miles from shiney
Car:valencia holden torana a9x hatch ultimate improvement on the barbados L34
Joined: 24-July 11

Posted 13 November 2012 - 11:11 PM

mick
i believe the rhs manifold on the lx has the long bolts to allow the fitment of the
block that contains the butterfly valve as per adr27a
i think the block is still available ex usa
as they were pretty much a standard gm part used by gm aust
cheers davemc

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#6 _sstorana_

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Posted 14 November 2012 - 06:55 AM

mick
i believe the rhs manifold on the lx has the long bolts to allow the fitment of the
block that contains the butterfly valve as per adr27a
i think the block is still available ex usa
as they were pretty much a standard gm part used by gm aust
cheers davemc

Thanks Dave,

If anyone can ID the other rhs manifold, that would be great too.

cheers
Mick

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#7 TerrA LX

Fulcrum Fixture

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Posted 14 November 2012 - 09:13 AM

mick
i believe the rhs manifold on the lx has the long bolts to allow the fitment of the
block that contains the butterfly valve as per adr27a

Pre 6/76 LX do NOT have the butterfly valve.

Can't help with part numbers but one would presume the short bolt one is pre 6/76 ADR27 and the long bolt one is post 0/76 ADR27a.

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#8 TerrA LX

Fulcrum Fixture

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Posted 14 November 2012 - 09:28 AM

Top one looks like RHS Blue motor (all).

Bottom one looks like RHS Red motor (all)

Hope that helps.

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#9 _1ARC_

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Posted 14 November 2012 - 09:58 AM

I have a RHS manifold with cast no. 7437802 with the two holes where the auto choke pipes fit into, for an LH set up, are welded. I guess that these were fitted to late LX. I have heard of the term 'butterfly valve' but I am confussed as to what it is. Does anyone have a photo of a manifold with butterfly valve set up?

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#10 _sstorana_

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Posted 14 November 2012 - 11:18 AM

The "butterfly valve" is called the Exhaust Heat Valve.

I have just found this in an old Gregory's Manual for HX-HZ V8.

Posted Image

Looking at the picture form the Gregory's Manual, It looks like the bottom manifold in my pic is for HX-HZ (albeit less the long bolts)...

If that is the case, it looks like the top manifold is Torana LX - ADR 27a...

can anyone else confirm this??

cheers
Mick